''Lathyrus biflorus'' is a rare species of
wild pea known by the common name twoflower pea. It is
endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to
Humboldt County, California
Humboldt County () is a county located in the U.S. state of California. As of the 2020 census, the population was 136,463. The county seat is Eureka.
Humboldt County comprises the Eureka–Arcata–Fortuna, California Micropolitan Statistica ...
, where it is known only from the
Mount Lassic Wilderness
Mount is often used as part of the name of specific mountains, e.g. Mount Everest.
Mount or Mounts may also refer to:
Places
* Mount, Cornwall, a village in Warleggan parish, England
* Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...
. It is a member of the
serpentine soil
Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...
s flora. This is a petite perennial herb growing thin, tough, fuzzy stems with leaves each made up of two pairs of small linear leaflets. There are tiny bristlelike
tendril
In botany, a tendril is a specialized stem, leaf or petiole with a threadlike shape used by climbing plants for support and attachment, as well as cellular invasion by parasitic plants such as ''Cuscuta''. There are many plants that have tendr ...
s. The
inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...
bears two greenish-white pea flowers each up to a centimeter wide. The fruit is a hairless
dehiscent
Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents. This is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part; structures that op ...
legume pod.
Further reading
*
References
External links
Jepson Manual TreatmentUSDA Plants ProfilePhoto galleryPlant Profile and Photo
biflorus
Endemic flora of California
Natural history of the California Coast Ranges
Natural history of Humboldt County, California
Plants described in 1983
Critically endangered flora of California
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