South Dakota Native Plant Research
Liliaceae : Hypoxis hirsuta

Liliaceae : Hypoxis hirsuta


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Family Name


Common Name

Yellow stargrass


Hypoxis hirsute is a perennial herb growing from a rounded, membranous coated corm. There is a rosette of 3-6 basal, linear leaves, 5-26 cm long and 2-12 mm wide, green with scattered white hairs. The plants produce one to several slender flowering stems (scapes), up to 20 cm tall, each with a 2-14 flowers in a terminal umbel. The flowers have 6 yellow tepals, 6-14 mm long and 2-6.5 mm wide, with hairs on the outer surfaces. There are 6 stamens, the filaments 2-3 mm long and the anthers 2-4 mm long. The ovary is inferior and hairy. The fruit is a hairy, ovoid capsule. Yellow stargrass blooms from April into July on prairies and in open deciduous woodlands in eastern South Dakota.

Additional Notes

Yellow stargrass provides a nice addition of color to a native plant garden. The flowers are attractive and attract small native bees.

Horticulture Notes

Seed collection: Collect unopened capsules in early summer and place in a paper bag until dry.

Germination: Fall sowing or a 60-day cold, moist treatment is needed before spring planting.

Vegetative propagation: Secondary corms form in stands of mature plants. These can be separated and transplanted after the plants are dormant.

Light: Full sun to partial shade.

Soils: Well drained loams, sands, or rocky soils.

Water: Moist to dry conditions.

Liliaceae : Hypoxis hirsuta