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Specimen number UCD83936
Determination Streptanthus brachiatus
More information: Jepson Online Interchange
Collector, number, date Ellen Dean; G. Harrington, C. Thomsen, J. Alderson, 6208, 2010-6-26
Verbatim date 26 Jun 2010
County Lake
Locality Cache Creek Wilderness area, southern edge of wilderness, accesssed via eastern forks of Rocky Creek Road and then via a private road owned by Stephen Gilardi (an area known as Brushy Sky High on some maps).
Elevation 701 m
HabitatSerpentine formation consisting of a crater of reddish, rocky barrens and drainages with surprising amounts of running water. Lower slopes and drainages with Cupressus sargentii and Pinus attenuata. Upper exposed slopes mostly unvegetated except for Streptanthus and Eriogonum spp. This plant is extremely common, found throughout barrens slopes. Growing here on top of ridge with Eriogonum nervulosum (another rare plant) but elsewhere with Asclepias solonoana or Eriogonum nudum. Very little else present on the slopes. Biennial or perennial herb with many first year rosettes present in the population. Plants to ca. 3-5 dm tall with deciduous basal leaves. Flowers of inflorescence one-sided sometimes and spiraled other times. Upper petals white with fine purple veins. Lower petals with dark purple stripe that takes up most of petal width or with several wide veins. Fruits ascending, not reflexed, with constrictions between seeds and no obvious midvein. Aphids are attacking some plants. Some rosettes look like they almost expanded into a flowering plant, but they were stunted by aphids, but non-flowering rosettes definitely present too.
Coordinates 38.93416 -122.47055 BerkeleyMapper [or without layers, here]
DatumNAD83
Coordinate sourceNot recorded
Voucher information
other label numbersDAV188325
verbatim elevation2300 ft
Annotations and/or
curatorial actions
-1: Streptanthus brachiatus (Original determination), 7/7/2010
1: Streptanthus brachiatus, I. Al-shehbaz, Oct 2010
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