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

Hymenopappus tenuifolius

chalk Hill hymenopappus, chalkhill woollywhite
Habit Biennials, 40–150 cm.
Leaves

2-pinnate, 8–15 cm, lobes (3–)5–15+ × 0.5–1.5+ mm;

cauline 8–30.
Ray florets

0.
Disc florets

25–50;

corollas whitish, 2.5–3 mm, tubes 1.5–2.2 mm, throats campanulate, 0.8–1.5 mm, lengths 1.5–2 times lobes.
Phyllaries

yellowish, 5–8 × 2–4 mm.
Heads

20–200 per stem.
Cypselae

3.5–4.5 mm, ± villous;

pappi of 16–18 scales 1–1.5(–2) mm.
Pedun

-cles 1–5 cm.
2n

= 34.

Hymenopappus tenuifolius
Phenology Flowering (Apr–)May–Jul(–Aug).
Habitat Sandy, gravelly, or silty soils, limestone
Elevation 50–2100 m (200–6900 ft)
Distribution
from FNA
CO; KS; NE; NM; OK; SD; TX; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 316.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Hymenopappinae > Hymenopappus
Sibling taxa
H. artemisiifolius, H. biennis, H. carrizoanus, H. filifolius, H. flavescens, H. mexicanus, H. newberryi, H. radiatus, H. scabiosaeus
Name authority Pursh: Fl. Amer. Sept. 2: 742. (1813)
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 Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

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