Pentachaeta lyonii
in A. Gray et al., Syn. Fl. N. Amer. 1(2): 445. 1884.
Common names: Lyon’s pentachaeta
EndemicConservation concern
Synonyms: Chaetopappa lyonii (A. Gray) D. D. Keck
Plants 6–48 cm. Stems branched. Leaf-blades linear to narrowly elliptic or oblanceolate, 20–50 × 3–6 mm. Involucres campanulate. Phyllaries in 2–3 series, narrowly lanceolate, sparsely hirsuto-pilose. Ray-florets 17–42; corollas yellow, laminae 3–8 mm. Disc-florets 21–91; corollas yellow, narrowly funnelform, not contracted at lobes, lobes 5. Pappi of 8–12 bristles, weakly dilated at bases. 2n = 18.
Phenology: Flowering Mar–Apr.
Habitat: Grassy coastal hills
Elevation: 20–700 m
Discussion
Of conservation concern.
Selected References
None.
Lower Taxa
None.
... more about "Pentachaeta lyonii"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
decurrent +
narrowly oblanceolate;linear or filiform +
ribbed +
stigmatic +
barbellate +
tawny +
persistent +
8;12 +
absent +
Lyon’s pentachaeta +
yellow +
contracted +
absent +
monomorphic +
(3-)5-ribbed +
dimorphic +
strigose +
staminate +
Calif. +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
indeterminate +
surrounding +
campanulate +
oblanceolate;elliptic +
3mm;6mm +
sessile +
alternate +
erect +
triangular +
hyaline +
delimited +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
dilated +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
herbaceous +
falling +
hirsuto-pilose +
lanceolate +
unequal +
in A. Gray et al., Syn. Fl. N. Amer. +
1884 +
pistillate +
absent +
fertile +
epaleate +
pitted +
flat;slightly convex +
fibrous +
exalbuminous +
modifed +
absent +
2;3 +
unequal +
equal +
alternate +
branched +
2-branched +
glabrous +
Pentachaeta lyonii +
Pentachaeta +
species +
shorter +
annual +