''Nemacladus twisselmannii'' is a rare species of flowering plant in the bellflower family known by the common names Twisselmann's threadplant and Twisselmann's nemacladus. 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 ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, where it is known only from two locations in the

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 ...

. There is one occurrence each in

Kern KERN (1180 AM) is a commercial radio station licensed to Wasco-Greenacres, California, and serving the Bakersfield metropolitan area. The station is owned by American General Media. The radio studios and offices are in the American General Me ...

and Tulare Counties.''Nemacladus twisselmannii''.
The Nature Conservancy. This is a small annual herb forming cushions of foliage at ground level, the stems no more than a centimeter long. The hairy, spoon-shaped leaves are 2 to 3 millimeters long. 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 ...

is a headlike cluster of flowers on hairlike

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

. The flower has hairy

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

s one millimeter long and a white corolla up to 3 millimeters long. The fruit is a tiny capsule with a rounded end and a pointed tip.''Nemacladus twisselmannii''.
Jepson Manual Treatment. The plant grows in coniferous forest with granite rock and sand at over 7000 feet in

elevation The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vert ...

. There are two known populations, each containing about 400 plants. They are located in remote wilderness in the

Sequoia National Forest Sequoia National Forest is located in the southern Sierra Nevada mountains of California. The U.S. National Forest is named for the majestic Giant Sequoia (''Sequoiadendron giganteum'') trees which populate 38 distinct groves within the boundar ...

. The plant is named for Central Valley cattle rancher and botanist Ernest Christian Twisselmann.CalFlora Botanical Names.
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References

External links

Campanulaceae Endemic flora of California {{Campanulaceae-stub