Flora of North America species comparison

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Carphochaete

bristlehead
Habit Subshrubs or shrubs, (8–)20–45(–120+)[–300] cm.
Stems

erect [decumbent], branched from bases and/or ± throughout.
Leaves

cauline; opposite [alternate];

sessile;

blades 1(–3)-nerved, narrowly elliptic or oblanceolate to linear, faces glabrate or puberulent, gland-dotted (in pits).
Involucres

cylindric [turbinate], [2–]3–5 mm diam.
Receptacles

flat to slightly convex (glabrous), epaleate [partially paleate].
Florets

3–4[–6+];

corollas white or pink to purple, throats narrowly funnelform (sometimes puberulent inside), lobes 5, narrowly triangular to linear (adaxially densely papillose);

styles: bases enlarged, glabrous, branches ± filiform (appendages cylindric or slightly flattened, densely papillose).
Phyllaries

persistent (at least outer), 8–12+ in 3–4+ series, not notably nerved, deltate-ovate to oblong, lanceolate, or linear, unequal.
Heads

discoid, usually borne singly or in pairs [in ± cymiform arrays].
Cypselae

subcylindric, [4–]8–10-ribbed, ± hirtellous;

pappi persistent, of 0–5+ muticous, erose, lacerate, or lanceolate to subulate scales (1–4 mm) plus [5–]9–12+ aristate scales (10–15 mm) [coroniform].
x

= 11, 12.

Carphochaete
Distribution
from USDA
sw United States; Mexico
[BONAP county map]
Discussion

Species 7 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 486. Author: David J. Keil.
Parent taxa Asteraceae > tribe Eupatorieae
Subordinate taxa
C. bigelovii
Name authority A. Gray: Mem. Amer. Acad. Arts, n. s. 4: 65. (1849)
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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