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Twisselmann's threadplant

Nemacladus twisselmannii

Also called Twisselmann's Nemacladus, Stoutstem Threadplant

Twisselmann's threadplant
Photo: Fletcher Linton, USFS botanist per [1], Public domain

Twisselmann's threadplant is a tiny annual wildflower in the bellflower family, endemic to two small sites in the Sierra Nevada of California. It is a rare native plant rather than a garden subject, so it is not commonly grown.

Family
Campanulaceae (Campanul family)
Grows as
Annual
Light
Full sun, Part shade
Soil
Sandy, gritty soil over granite in its native habitat
Native range
S. California
Climate
subtropical

About

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 to California, where it is known only from two locations in the Sierra Nevada. There is one occurrence each in Kern and Tulare Counties.

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 is a headlike cluster of flowers on hairlike pedicels. The flower has hairy sepals 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.

Other Nemacladus plants

Chimney Creek Nemacladus · Common threadplant · Glandular threadplant · Slender threadplant · Sierra threadplant · Smallflower threadplant · Stoutstem threadplant · Sigmoid threadplant · Threadplant

Text excerpted from the Wikipedia article Nemacladus twisselmannii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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