Flora of North America species comparison

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Jamesianthus

jamesianthus
Habit Perennials, 60–150+ cm (fibrous-rooted).
Leaves

cauline; opposite;

petiolate or sessile;

blades ± lanceolate to narrowly trullate, (bases sometimes ± auriculate) margins entire or denticulate, faces: abaxial glabrous, adaxial minutely scabrellous to hirtellous.
Involucres

± campanulate or broader, 9–12+ mm diam.
Receptacles

flat to convex, epaleate.
Ray florets

6–8, pistillate, fertile;

corollas yellow.
Disc florets

20–30, all bisexual or inner functionally staminate;

corollas yellow, tubes shorter than to equaling ± campanulate to funnelform throats, lobes 5, ovate-deltate to deltate (style branches stout, appendages deltate).
Phyllaries

persistent, 14–18+ in ± 3 series (± oblong, ovate, ovate-oblong, or ovate-attenuate, unequal, outer shorter).
Heads

radiate, borne singly or in open, corymbiform arrays.
Disc cypselae

± ellipsoid to clavate, ± hispidulous;

pappi 0, or fragile, of 6–8+ barbellulate bristles (borne on crowns).
Ray cypselae

± obovoid, weakly obcompressed, 16–24-nerved, ± hispidulous;

pappi 0, or fragile, of 6–8+ barbellate bristles (borne on crowns).

Jamesianthus
Distribution
from FNA
AL
[BONAP county map]
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 377. Author: John L. Strother.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Chaenactidinae
Subordinate taxa
J. alabamensis
Name authority S. F. Blake & Sherff: Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 399. (1940)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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