Above: Yellow Star Grass in the Curtis Prairie in the University of Wisconsin-Madison Arboretum in Madison, Wisconsin on May 21, 2022.
Yellow Star Grass - Hypoxis hirsuta (Native)
The star shaped, bright yellow flower of Yellow Star Grass is 6-parted and about 1/2" - 1" wide. The slender, hairy flower stalk grows from 4" - 12" tall. The grass-like leaves grow taller than the flower stalk when mature.
Yellow Star Grass grows in dry areas such as open woods and prairies. It does not compete well with larger plants, so look for it at the edges of open spaces.
Other names: Common gold-star, Common star-grass.
Blooms April - July.
For more information on Yellow Star Grass (Hypoxis hirsuta), visit Wikipedia.
Or, visit the UW-Madison Wisconsin State Herbarium website page about Yellow Star Grass - Hypoxis hirsuta.
Yellow Star Grass
Above: Yellow Star Grass in the Curtis Prairie in the University of Wisconsin-Madison Arboretum in Madison, Wisconsin (5/21/22)
Above: Illustration of Yellow Star from Wild Flowers of America, published July 17, 1894.
Above: 1913 line drawing of Hypoxis hirsuta (L.) Coville.
Above: Hypoxis hirsuta line drawing from USDA NRCS, Wetland flora: Field office illustrated guide to plant species., USDA NRCS National Wetland Team.