Log In
New Account
Sitemap
Home
Specimen Search
Search Collections
Map Search
Exsiccati Search
Images
Image Library
Search Images
Inventories
State Floras
Kentucky Flora
Dynamic Tools
Dynamic Checklist
Dynamic Key
Hasteola
Family:
Asteraceae
Scott Namestnik
FNA
Resources
Loran C. Anderson in Flora of North America (vol. 20)
Perennials,
(50-)60-240 cm.
Stems
usually 1, erect (unbranched proximal to heads).
Leaves
basal and cauline; alternate; petiolate (proximal) or sessile; blades pinnately nerved, broadly deltate or hastate (proximal) to broadly lanceolate, margins doubly-serrate, faces glabrous.
Heads
discoid, in corymbiform (± flat-topped) arrays.
Calyculi
of 4-9+ (subulate, rarely leaflike) bractlets.
Involucres
cylindric or campanulate to obconic, 5-8+ mm diam. (glabrous).
Phyllaries
persistent, 7-14+ in 1-2 series, erect, distinct, oblong, ± equal, margins chartaceous to scarious.
Receptacles
slightly convex or flat, foveolate, epaleate.
Ray florets
0.
Disc florets
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).
Cypselae
cylindric-fusiform, 8-12-ribbed, glabrous;
pappi
persistent (fragile), of 100-150+, white, barbellulate bristles.
x
= 20.
Asian species that have been assigned to
Hasteola
belong to
Parasenecio
.
Species within inventory project:
Arizona Flora
Hasteola robertiorum
Hasteola suaveolens
This project made possible by
National Science Foundation Award 1410069
Powered by
Symbiota
.