Flora of North America species comparison

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Holozonia filipes

Holozonia, whitecrown
Leaf

blades (proximal) 3–10 cm × 2–8 mm.
Disc corollas

3–4.5 mm.
Phyllaries

3–5 mm.
Cypselae

2.5–3.5 mm.
2n

= 28.

Holozonia filipes
Phenology Flowering Jun–Oct.
Habitat Banks and dry beds of streams and pools, often in rocky sites or alkaline clays
Elevation 30–600 m (100–2000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Holozonia filipes is the only perennial, continental tarweed with white corollas or filiform peduncles and is unique among the perennials for occurring in low-elevation, summer-hot, interior habitats. Like most of the perennial, continental tarweeds, H. filipes is self-incompatible and has a geographic distribution marked by major disjunctions between some populations.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 294.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Madiinae > Holozonia
Name authority (Hooker & Arnott) Greene: Bull Torrey Bot. Club 9: 122. (1882)
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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