Flora of North America species comparison

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Aphanostephus ramosissimus

plains dozedaisy, plains lazydaisy
Habit Annuals, 10–45 cm; vestiture hispidulo-puberulent, stem hairs spreading to deflexed, 0.2–0.6 mm.
Ray florets

20–41.
Disc florets

corolla bases not conspicuously swollen and indurate.
Cypselae

hairs apically straight;

pappi minutely ciliate crowns 0.1–0.2 mm or absent or nearly so.
Phyllary

apices acute.
2n

= 8.

Aphanostephus ramosissimus
Distribution
from FNA
AZ; NM; OK; TX; Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 3 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Involucres 4.7–7.5 mm; cypselae (1.1–)1.4–1.6 mm; pappi 0 or minutely ciliate rings 0.1–0.2 mm, sometimes nearly smooth at apices
var. humilis
1. Involucres 3.2–4.8 mm; cypselae (1–)1.2–1.4 mm; pappi coroniform, indurate, cupuliform, 0.2–0.6 mm, usually minutely ciliate-tipped
var. ramosissimus
Source FNA vol. 20, p. 353.
Parent taxa Asteraceae > tribe Astereae > Aphanostephus
Sibling taxa
A. pilosus, A. riddellii, A. skirrhobasis
Subordinate taxa
A. ramosissimus var. humilis, A. ramosissimus var. ramosissimus
Name authority de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 310. (1836)
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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