Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Nemacaulis denudata

cottonheads, woolly heads
Habit Plants 0.4–2.5(–4) × 0.2–8 dm.
Leaf

blades 1–8 × 0.1–1.5 cm.
Inflorescences

0.3–3 × 2.8 dm;

branches (2–)4–10 at first node, 1–2(–3) thereafter;

bracts 1–5 × 0.5–2 mm.
Peduncles

0.1–3 mm or absent.
Flowers

perianth 0.5–1.5 mm;

filaments 0.5–1 mm;

anthers 0.2 mm.
Achenes

1 mm.
Involucral

bracts (1.5–)2–4 × 0.5–2 mm.

Nemacaulis denudata
Distribution
from FNA
AZ; CA; nw Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Flowers (5-)12-30 per involucre; peduncles usually absent; involucral bracts dark red, white-tomentose; stems prostrate to decumbent; leaf blades usually spatulate, sometimes linear; outer tepals broadly obovate to ovate; coastal beaches
var. denudata
1. Flowers 5(-12) per involucre; peduncules usually present; involucral bracts light brown to yellowish green, tawny-tomentose; stems ascending to erect; leaf blades usually linear or narrowly spatulate; outer tepals linear to oblong; coastal and inland deserts
var. gracilis
Source FNA vol. 5, p. 441.
Parent taxa Polygonaceae > subfam. Eriogonoideae > Nemacaulis
Subordinate taxa
N. denudata var. denudata, N. denudata var. gracilis
Synonyms Eriogonum nemacaulis
Name authority Nuttall: J. Acad. Nat. Sci. Philadelphia, n. s. 1: 168. (1848)
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers