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Diffuseflower evening primrose

Taraxia subacaulis

Also called Diffuse Flower Evening Primrose

Diffuseflower evening primrose
Photo: Utahwildflowers (talk) (Uploads), CC BY 3.0

Taraxia subacaulis, known as longleaf suncup or diffuseflower evening primrose, is a stemless native perennial of western North America, usually found in moist mountain meadows. It is a wildflower rather than a common garden plant, and it grows best in cool, moist, well-drained conditions.

Family
Onagraceae (Evening-primrose family)
Grows as
Bulb, Perennial
Light
Part shade, Full sun
Water
Water regularly during the growing season and allow the soil to dry slightly between waterings.
Soil
Moist but well-drained, gritty loam or mountain meadow soil.
Temperature
10–24 °C; tolerates cold winters well
How easy
Hard
Native range
W. U.S.A.
Climate
temperate

About

Taraxia subacaulis is a species of evening primrose known by the common name longleaf suncup. It is native to the western United States, where it grows in several habitat types, especially in mountainous areas in moist meadows. It is a fleshy perennial herb growing from a taproot and usually lacking a stem. The leaves are lance-shaped to oval and up to 22 centimeters long and are borne on long petioles. The flower has 4 yellow petals, each up to 1.5 centimeters long, and a large, bulbous stigma tip. The fruit is a leathery capsule 1 to 3 centimeters long.

Other Taraxia plants

Fewflower evening primrose · Sun Cup · Tansy Leaf Suncup · Taraxia

Text excerpted from the Wikipedia article Taraxia subacaulis 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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