Hasteola
false Indian plantain
usually 1, erect (unbranched proximal to heads).
basal and cauline; alternate;
petiolate (proximal) or sessile;
blades pinnately nerved, broadly deltate or hastate (proximal) to broadly lanceolate, margins doubly-serrate, faces glabrous.
cylindric or campanulate to obconic, 5–8+ mm diam. (glabrous).
slightly convex or flat, foveolate, epaleate.
0.
10–55, bisexual, fertile;
corollas usually white or ochroleucous to greenish, rarely pinkish, tubes longer than cylindric throats, lobes 5, erect to spreading, lanceolate;
style branches stigmatic in 2 lines, apices truncate or truncate-penicillate (appendages essentially 0).
persistent, 7–14+ in 1–2 series, erect, distinct, oblong, ± equal, margins chartaceous to scarious.
of 4–9+ (subulate, rarely leaflike) bractlets.
discoid, in corymbiform (± flat-topped) arrays.
cylindric-fusiform, 8–12-ribbed, glabrous;
pappi persistent (fragile), of 100–150+, white, barbellulate bristles.
= 10.
Hasteola
Species 2 (2 in the flora).
Asian species that have been assigned to Hasteola belong to Parasenecio.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Florets 10–14; proximal cauline leaves deltate | H. robertiorum |
1. Florets 18–55; proximal cauline leaves hastate to deltate or lanceolate | H. suaveolens |
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