Skip to main content
Close

Yellow Star Grass

Hypoxis hirsuta

Photo by BrianSimpson
Published on Project Noah
Zoom
NominateNominate for Wildlife Photograph of the Month
reportFlag Spotting

36.1037, -95.9796

Field Notes

Description:

This small native perennial plant consists of a rosette of slender basal leaves and shorter flowering stems. The linear basal leaves are up to 1' tall and ½" across. They have scattered white hairs. The flowering stems are up to 8" tall, and have scattered white hairs as well. Each of these stems terminates in a rather loose umbel of two or more yellow flowers. A flower is about ¾" across and consists of 6 tepals that spread outward. In the center, a yellow pistil is surrounded by 6 stigmas with prominent yellow anthers. Each anther is shaped like an upside-down V. The blooming period occurs from mid-spring to early summer and lasts about a month. Sometimes there is a mild floral fragrance. Each seed capsule splits open irregularly, releasing several glossy black seeds that are covered with concentric rows of wart-like projections. The root system consists of small corms.

Habitat:

Yellow Star Grass occurs in the majority of counties in Illinois (see Distribution Map). While it is widely distributed, this plant is not particularly common in any given locality. Habitats include mesic black soil prairies, hill prairies, savannas, open woodlands and paths through woodlands, fens, sandstone glades, abandoned fields, and lawns. Like Claytonia virginica (Spring Beauty), Yellow Star Grass can spread into lawns if mowing is delayed until late in the spring. Fidelity to any particular habitat is low.

Species ID Suggestions

Yellow Star Grass

Hypoxis hirsuta

Comments (0)

Be the first to comment

Sign in to comment
Photographed
PublishedMarch 8, 2011

Accelerate our Mission to Photograph 
Every Species in the World!

Image
Butterflies icon

Wildlife Community

Wildlife Community

Join a worldwide community passionate about wildlife and nature!

Join Project Noah

Nature School

Nature School

Transform your green space into a curiosity-creating nature classroom!

Visit Nature School

Wildlife Game

Wildlife Game

Defend wildlife throughout the jungle in thrilling nature game!

Play Baboon