Lasthenia Cassini (Q2857)
Jump to navigation
Jump to search
Lasthenia is a taxon with the rank genus within the tribe Madieae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Lasthenia Cassini
|
Lasthenia is a taxon with the rank genus within the tribe Madieae
|
Statements
taxon/id/Lasthenia Cassini
0 references
Lasthenia Cassini
Lasthenia
Cassini
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
1 reference
Stems usually erect, sometimes decumbent, prostrate, or sprawling, simple or branched (usually distally, often proximally in decumbent plants).
1 reference
Leaves mostly cauline;
1 reference
petiolate or sessile;
1 reference
blades usually linear, often 1 (–2) -pinnately lobed, ultimate margins entire or toothed, faces glabrous or hairy.
1 reference
Heads usually radiate, sometimes ± disciform (in L. glaberrima and L. microglossa), borne singly or in ± corymbiform arrays.
1 reference
Involucres obconic to hemispheric, 3–5+ mm diam.
1 reference
Phyllaries usually persistent, sometimes falling with cypselae, 4–18 in 1 (–2) series (usually ± erect in fruit, distinct or ± connate, narrowly oblong to broadly ovate, mostly herbaceous, bases flat or weakly cupped, faces not woolly, except sometimes in L. minor and L. platycarpha).
1 reference
Receptacles hemispheric to narrowly conic or subulate, smooth, papillate, or pitted, glabrous or hairy, epaleate.
1 reference
Ray-florets 4–16, pistillate, fertile;
1 reference
corollas yellow to orangish (sometimes white in L. debilis, often somewhat darker proximally, laminae rarely lacking in L. glaberrima and L. microglossa).
1 reference
Disc-florets 5–100+, bisexual, fertile;
1 reference
corollas yellow to orangish (sometimes white in L. debilis), tubes shorter than or about equaling funnelform or campanulate throats, lobes (4–) 5, deltate.
1 reference
Cypselae (black to gray) usually cylindric to obovoid, glabrous or hairy, sometimes papillate (flattened, margins fringed with blunt, curved hairs in L. chrysantha);
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
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
in more or less corymbiform arrays
1 reference
1 reference
hemispheric
narrowly conic or subulate
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