Pyrrocoma Hooker (Q2281)
Jump to navigation
Jump to search
Pyrrocoma is a taxon with the rank genus within the tribe Astereae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Pyrrocoma Hooker
|
Pyrrocoma is a taxon with the rank genus within the tribe Astereae
|
Statements
taxon/id/Pyrrocoma Hooker
0 references
Pyrrocoma Hooker
Pyrrocoma
Hooker
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
1 reference
Stems decumbent to ascending or erect (leafy or subscapiform, often red-tinged), mostly simple.
1 reference
basal usually short-petiolate, cauline sessile;
1 reference
basal blades 1-nerved, oblanceolate to elliptic or nearly linear (3–250 (–450) × 3–30 mm, bases usually attenuate), margins entire or spinulose-dentate or serrate or shallowly laciniate;
1 reference
cauline often lanceolate, reduced distally (bases sometimes clasping).
1 reference
Heads usually radiate or disciform, rarely discoid, borne singly or 2–5 (–15) in racemiform, spiciform, or loose, corymbiform arrays (subtended by leafy bracts in P. carthamoides and P. radiata).
1 reference
Involucres hemispheric to narrowly campanulate, 5–15 (–30) × 5–60 mm.
1 reference
Phyllaries 10–40 in 2–6 series, appressed to loosely spreading, 1-nerved, oblanceolate to oblong or linear, equal or unequal, usually herbaceous and yellow-green or with distinct, green apical patch, sometimes proximal 2/3 white-indurate (apices occasionally squarrose, obtuse or acute, occasionally mucronate), faces glabrous or densely villous to tomentose.
1 reference
Receptacles convex, pitted, epaleate.
1 reference
Ray-florets 10–80, pistillate, fertile;
1 reference
corollas yellow (usually 10–35 mm, sometimes reduced, not surpassing involucres).
1 reference
Disc-florets 20–100, bisexual, fertile;
1 reference
corollas yellow, tubes ± equaling tubular-funnelform throats, lobes 5, erect, deltate;
1 reference
style-branch appendages triangular.
1 reference
Cypselae subcylindro-fusiform, terete to ± flattened, 3–4-angled, faintly 10–12-nerved, faces sericeous to strigose or glabrous;
1 reference
pappi persistent, of 15–60 brownish, rigid, unequal, smooth, apically attenuate bristles in 1 series.
1 reference
decumbent
ascending or erect
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
serrate or shallowly laciniate
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
hemispheric
narrowly campanulate
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
sericeous
strigose or glabrous
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
1 reference
more or less flattened
1 reference
1 reference