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Biennial woollywhite

Hymenopappus biennis

Biennial woollywhite
Photo: Patrick Alexander from Las Cruces, NM, CC0

Biennial woollywhite is a North American daisy-family herb, up to about 100 cm tall, with clusters of small white and yellow flower heads. It is a wildflower of the southwestern US and is rarely grown in gardens, so its care is loosely known.

Family
Asteraceae (Daisy family)
Light
Full sun
Water
Water lightly; let the soil dry out between waterings.
Soil
Well-drained, sandy or gritty soil.
Temperature
Hardy in warm to hot, dry climates; protect from hard frost.
How easy
Easy
Native range
SC. U.S.A.

About

Hymenopappus biennis, the biennial woollywhite, is a North American species of flowering plant in the daisy family. It has been found in New Mexico and western Texas.

Hymenopappus biennis is a biennial herb up to 100 cm (39 in) tall. It produces 20-40 flower heads per stem, each head with 8 white ray flowers surrounding 32–50 yellow disc flowers.

Other Hymenopappus plants

Oldplainsman · Carrizo Sands woollywhite · Fineleaf hymenopappus · Collegeflower · Hymenopappus flavomarginatus · Hymenopappus hintoniorum · Mexican woollywhite · Newberry's hymenopappus · Ray hymenopappus · Carolina woollywhite · Chalk Hill hymenopappus · Woolly White

Text excerpted from the Wikipedia article Hymenopappus biennis 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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