Flora of North America species comparison

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Croton pottsii var. thermophilus

Croton pottsii var. pottsii
Photo is of parent taxon

desert leatherweed, leatherweed
Photo is of parent taxon

encinilla, leatherweed
Stems

somewhat zigzag;

erect radii of stellate hairs longer than lateral radii, thus pubescence appearing ± shaggy.

straight;

erect radii of stellate hairs shorter than lateral radii, thus pubescence appearing appressed and smooth.
Leaf

blades usually 1–1.4 cm.

blades 1.6–6 cm.
Racemes

mostly 0.5–0.9 cm.

mostly 1.1–2.5 cm.
Styles

usually 0.5–1 mm.

1.1–4.5 mm.
Capsules

4 mm.

4–6(–7) mm.

Croton pottsii var. thermophilus

Croton pottsii var. pottsii
Phenology Flowering Jul–Oct. Flowering May–Oct.
Habitat Basalt and limestone hills. Desert scrub, arid plains, rocky slopes.
Elevation 700–1800 m. (2300–5900 ft.) 700–2000 m. (2300–6600 ft.)
Distribution
from FNA
TX; Mexico (Coahuila)
[BONAP county map]
from FNA
AZ; NM; TX; n Mexico; c Mexico
[BONAP county map]
Discussion

Variety thermophilus is restricted to Brewster County and nearby Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 12, p. 222. FNA vol. 12, p. 222.
Parent taxa Euphorbiaceae > Croton > Croton pottsii Euphorbiaceae > Croton > Croton pottsii
Sibling taxa
C. pottsii var. pottsii
C. pottsii var. thermophilus
Synonyms C. corymbulosus var. thermophilus, C. thermophilus C. corymbulosoides, C. corymbulosus
Name authority (M. C. Johnston) M. C. Johnston: SouthW. Naturalist 5: 171. (1960) unknown
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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