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''Draba lemmonii'' is a
perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...
in the family
Brassicaceae Brassicaceae () or (the older) Cruciferae () is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, while some are shrubs. The le ...
found in the high elevation United States
Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...
range, commonly known as Lemmon's draba.Sierra Nevada Wildflowers, 2nd Ed., 2013, p. 123


Growth pattern

It is a hairy mat forming perennial growing to .


Habitat and range

It grows in crevices, talus, and rocky meadows of the
subalpine forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
and
alpine zone Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated harsh climate. As the latitude of a location approaches the poles, the threshold elevation for alpine tundra gets ...
of the United States
Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...
range.


Leaves and stems

Basal leaves are
obovate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular o ...
, up to , and hairy on both sides.


Inflorescence and fruit

The flower stalk has up to 30 small, yellow, 4 petalled flowers on top in July of August.


References

{{Taxonbar, from=Q15464706 lemmonii Flora of the Sierra Nevada (United States) Flora without expected TNC conservation status