Heuchera abramsii

Rydberg

in N. L. Britton et al., N. Amer. Fl. 22: 109. 1905 ,.

Common names: San Gabriel alum-root
Endemic
Treatment appears in FNA Volume 8. Treatment on page 99. Mentioned on page 87, 100.
Revision as of 11:57, 30 July 2020 by imported>Volume Importer
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Herbs subcaulescent; caudex branched. Flowering-stems 6–15 cm, short-stipitate-glandular. Leaves: petiole glabrous or short-stipitate-glandular and scattered medium stipitate-glandular; blade ovate, deeply 5-lobed, 0.5–2 cm, base truncate or shallowly cordate, lobes rounded, margins dentate, apex obtuse, surfaces short-stipitate-glandular abaxially, sparsely long-stipitate-glandular adaxially. Inflorescences dense. Flowers: hypanthium strongly bilaterally symmetric, free 1.5–2 mm on adaxial side, reddish purple, cylindric, 4–5 mm, short-stipitate-glandular proximally, medium stipitate-glandular distally; sepals spreading, green-tipped, unequal, 1.2–1.5 mm, apex obtuse or rounded; petals spreading, white, spatulate or oblanceolate, rarely linear, unlobed, 1.5–2.5 mm (equaling or longer than sepals), margins entire; stamens barely included to 1.5 mm exserted; styles exserted 1.5–2 mm, 2.5–3 mm, 0.1+ mm diam. Capsules ovoid, 3.5–5 mm, beaks divergent, not papillose. Seeds dark-brown, ellipsoid, 0.6 mm.


Phenology: Flowering Jul–Aug.
Habitat: Rocky soil in red fir forest
Elevation: 2800-3100 m

Discussion

Heuchera abramsii occurs in the San Antonio Mountains and the eastern part of the San Gabriel Mountains, San Bernardino and Los Angeles counties. It closely resembles H. brevistaminea, H. caespitosa, H. elegans, and H. pulchella.

Selected References

None.

Lower Taxa

None.

"full" is not a number.

... more about "Heuchera abramsii"
epigynous +, perigynous +  and hypogynous +
rounded +  and obtuse +
Elizabeth Fortson Wells +  and Barbara Greene Shipes +
Rydberg +
cordate +  and truncate +
not papillose +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
5-lobed +  and ovate +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3-carpellate +  and 2-carpellate +
San Gabriel alum-root +
ebracteate +, bracteate +  and 2-300(-1000+)-flowered +
2800-3100 m +
unisexual +  and bisexual +
bearing 1-5 cauline leaves +  and leafless +
6 cm60 mm <br />0.06 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Rocky soil in red fir forest +
multicellular +
reddish purple +
stipitate-glandular +  and short-stipitate-glandular +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
bracteate +, not secund +  and 100-1000-flowered +
dense +  and diffuse +
opposite +  and alternate +
rounded +
entire +  and dentate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
crassinucellate +, unitegmic +  and bitegmic +
epigynous +, perigynous +  and hypogynous +
distinct +
unlobed +, oblanceolate +  and spatulate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
peltate +  and jointed +
stipitate-glandular +, short-stipitate-glandular +  and glabrous +
Flowering Jul–Aug. +
unequal +
in N. L. Britton et al., N. Amer. Fl. +
dark-brown +
straight +
muricate +, cellular-rugulose +, tuberculate +, pitted +, papillate +  and wrinkled +
ellipsoid +
0.6 cm6 mm <br />0.006 m <br /> (?) +
green-tipped +
distinct +
unequal +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
exserted +  and included +
1.5 cm15 mm <br />0.015 m <br /> (?) +
unbranched +  and branched +
persistent +
horizontal +  and erect +
connate +  and distinct +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
long-stipitate-glandular +  and short-stipitate-glandular +
Heuchera abramsii +
Heuchera +
species +
glandular-ciliate +  and ciliate +
crenate +  and dentate +
annual +, biennial +  and perennial +