Pentachaeta aurea
Trans. Amer. Philos. Soc., n. s. 7: 336. 1840.
Common names: Golden-rayed pentachaeta
Illustrated
Synonyms: Chaetopappa aurea (Nuttall) D. D. Keck
Plants 5–36 cm. Stems branched. Leaf-blades linear, 10–35 (–55) × 1 (–3) mm. Involucres turbinate. Phyllaries in 4–5-series, ovate-elliptic to oblongelliptic, usually glabrous, rarely sparsely short-strigose. Ray-florets 14–52; corollas yellow to brownish orange, laminae 3–12 mm. Disc-florets 30–90; corollas yellow, narrowly funnelform, not contracted at lobes, lobes 5. Pappi of 5 (–8) bristles, prominently dilated at bases. 2n = 18.
Phenology: Flowering Apr–Jul.
Habitat: Grassy or shrubby areas
Elevation: 30–2000 m
Distribution
Calif., Mexico (nw Baja California)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Pentachaeta aurea"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
narrowly oblanceolate;linear or filiform +
ribbed +
stigmatic +
barbellate +
tawny +
persistent +
absent +
Golden-rayed pentachaeta +
contracted +
absent +
monomorphic +
(3-)5-ribbed +
dimorphic +
strigose +
staminate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
indeterminate +
Present +
surrounding +
turbinate +
sessile +
alternate +
erect +
triangular +
hyaline +
delimited +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
dilated +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
herbaceous +
falling +
unequal +
Trans. Amer. Philos. Soc., n. s. +
1840 +
pistillate +
absent +
fertile +
epaleate +
pitted +
flat;slightly convex +
fibrous +
exalbuminous +
modifed +
absent +
1;3;5 +
unequal +
equal +
Illustrated +
alternate +
branched +
2-branched +
glabrous +
Pentachaeta aurea +
Pentachaeta +
species +
shorter +
annual +