Flora of North America species comparison

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Heuchera micrantha var. hartwegii
Photo is of parent taxon

Hartweg's alumroot, Hartweg's small-flower alumroot
Leaves

petiole short stipitate-glandular mixed with long stipitate-glandular;

blade pentagonal or heptagonal, deeply lobed.
Inflorescences

long stipitate-glandular.
Flowers

hypanthium broadly turbinate, 1.5–4.7 × 1.5–3.8 mm, long stipitate-glandular;

sepals 0.5–1.3 mm, apex rounded to acute;

petals 0.3–0.7 mm wide;

styles 1.8–4.2 mm.
2n

= 14, 28.

Heuchera micrantha var. hartwegii
Phenology Flowering Apr–Jul.
Habitat Redwood or pine forest over sandstone, granite, or serpentine soils
Elevation 0-1600 m (0-5200 ft)
Distribution
from FNA
CA; OR; WA
[BONAP county map]
Discussion

Variety hartwegii occurs in the Coast Ranges.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 92.
Parent taxa Saxifragaceae > Heuchera > Heuchera micrantha
Sibling taxa
H. micrantha var. diversifolia, H. micrantha var. erubescens, H. micrantha var. macropetala, H. micrantha var. micrantha
Synonyms H. pilosissima var. hartwegii, H. hartwegii
Name authority (S. Watson ex Wheelock) Rosendahl: Bot. Jahrb. Syst. 37(2, Beibl. 83): 77. (1905)
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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