Jepson eFlora Key page for Encelia
Key to Encelia
(For a list of taxa in Encelia, use the above link.)
Glossary: Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.
1.
Heads1. A dense, often spheric inflorescence of sessile or subsessile flowers.
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. in panicle-like cluster, always radiateIn Asteraceae, a head composed of central disk flowers and marginal ray flowers.; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). ± hairy, hairsThread-like epidermal outgrowth. curled
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. in panicle-like cluster, always radiateIn Asteraceae, a head composed of central disk flowers and marginal ray flowers.; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). ± hairy, hairsThread-like epidermal outgrowth. curled
2.
Heads1. A dense, often spheric inflorescence of sessile or subsessile flowers.
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. 2–5 in loose panicle-like cluster with branches mostly proximalCloser to the base, origin, or point of attachment, or farther away from the edge or tip.; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). moderately hairy, often partly strigose
With stiff, straight, sharp, appressed hairs., green to ± canescentCovered with dense, fine, generally grayish white hairs. (e.g., Phoenicaulis cheiranthoides leaf)
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. 2–5 in loose panicle-like cluster with branches mostly proximalCloser to the base, origin, or point of attachment, or farther away from the edge or tip.; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). moderately hairy, often partly strigose
With stiff, straight, sharp, appressed hairs., green to ± canescentCovered with dense, fine, generally grayish white hairs. (e.g., Phoenicaulis cheiranthoides leaf) 3.
Disk corollasCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. red; raysEach of a number of radiating axes, as a primary branch in a compound umbel. well-developed, not deeply lobed ..... [E. californica × E. farinosa]
3′
Disk corollasCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. yellow; raysEach of a number of radiating axes, as a primary branch in a compound umbel. often short, few, deeply lobed ..... [E. farinosa × E. frutescens]
2′
Heads1. A dense, often spheric inflorescence of sessile or subsessile flowers.
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. 3–9 in loose to tight panicle-like cluster with branches mostly distalFarther away from the base, origin, or point of attachment, or closer to the edge or tip.; raysEach of a number of radiating axes, as a primary branch in a compound umbel. well developed; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). minutely tomentose
Covered with densely interwoven, generally matted hairs., not at all strigoseWith stiff, straight, sharp, appressed hairs., silvery or gray ..... E. farinosa
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. 3–9 in loose to tight panicle-like cluster with branches mostly distalFarther away from the base, origin, or point of attachment, or closer to the edge or tip.; raysEach of a number of radiating axes, as a primary branch in a compound umbel. well developed; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). minutely tomentose
Covered with densely interwoven, generally matted hairs., not at all strigoseWith stiff, straight, sharp, appressed hairs., silvery or gray ..... E. farinosa 4.
Disk corollasCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. yellow to orange; anthersPollen-bearing portion of a stamen, including one, two, or four pollen sacs. orange ..... var. farinosa
4′
Disk corollasCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. red to reddish brown, dark brown, or brown-purple; anthersPollen-bearing portion of a stamen, including one, two, or four pollen sacs. red to dark brown ..... var. phenicodonta
1′
Heads1. A dense, often spheric inflorescence of sessile or subsessile flowers.
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. generally solitary, radiateIn Asteraceae, a head composed of central disk flowers and marginal ray flowers. or discoid; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). glabrousWithout hairs. or hairy
2. In Asteraceae and some other groups, a head-like inflorescence is one in which sessile or subsessile inflorescence units (e.g., heads in Asteraceae, umbels enclosed by involucres in Eriogonum), instead of individual flowers, are attached in a short dense cluster without an evident axis or branches. generally solitary, radiateIn Asteraceae, a head composed of central disk flowers and marginal ray flowers. or discoid; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). glabrousWithout hairs. or hairy
5.
Disk corollaCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. brown-purple; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). green, glabrousWithout hairs. to sparsely and minutely strigoseWith stiff, straight, sharp, appressed hairs. or bristly ..... E. californica
With stiff, straight, sharp, appressed hairs. or bristly ..... E. californica 5′
Disk corollaCollective term for petals; whorl of flower parts immediately inside or above calyx, often large and brightly colored. Sometimes indistinguishable from calyx. yellow or orange; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). green to gray, glabrousWithout hairs. or hairy
6.
Ray flowers 0; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). green, strigoseWith stiff, straight, sharp, appressed hairs. but not canescent ..... E. frutescens
With stiff, straight, sharp, appressed hairs. but not canescent ..... E. frutescens 6′
Ray flowers present; leavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). gray-green to green, canescentCovered with dense, fine, generally grayish white hairs. (e.g., Phoenicaulis cheiranthoides leaf)
7.
LeavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). silvery green, canescentCovered with dense, fine, generally grayish white hairs. (e.g., Phoenicaulis cheiranthoides leaf), not at all strigoseWith stiff, straight, sharp, appressed hairs.; ray flowers 14–25, ray 10–25 mm, shallowly toothed; sw SnJV and adjacent WTR (Cuyama Valley), W&I, w D and adjacent CA-FP, DMtns ..... E. actoni
With stiff, straight, sharp, appressed hairs.; ray flowers 14–25, ray 10–25 mm, shallowly toothed; sw SnJV and adjacent WTR (Cuyama Valley), W&I, w D and adjacent CA-FP, DMtns ..... E. actoni 7′
LeavesOrgan arising from a stem, generally composed of a stalk (petiole) and a flat, expanded, green, photosynthetic area (blade); distinguished from a leaflet by the presence in its axil of a bud, branch, thorn, or flower; sometimes with lateral, basal appendages (stipules); either simple (toothed, lobed, or dissected but not divided into leaflets) or compound (divided into leaflets). sparsely strigoseWith stiff, straight, sharp, appressed hairs. and lightly soft-canescent; ray flowers 11–21, ray 8–15 mm, deeply toothed; e DMoj, DMtns ..... E. virginensis
With stiff, straight, sharp, appressed hairs. and lightly soft-canescent; ray flowers 11–21, ray 8–15 mm, deeply toothed; e DMoj, DMtns ..... E. virginensis