Aquatic and Wetland Vascular Plants of the Northern Great Plains
67. Liliaceae, the Lily Family
1. Hypoxis L. -- Stargrass
1. Hypoxis hirsuta (L.) Cov. -- Yellow stargrass
Low, acaulescent perennial 6-25 cm tall, from a small shallow corm. Leaves
grasslike but lacking sheaths, 1-5 mm wide, equaling or surpassing the inflorescence,
mostly 5- to 9-nerved. Scapes 1-few, slender, lax, sericeous in the upper
part. Flowers 1-6 (usually 2) per scape, yellow, 1-2.5 cm across, pubescent
on the outside of the tepals and ovary; tepals spreading in flower, 5-12
mm long, closing up and turning green after flowering, persistent; ovary
inferior. Capsule ellipsoid, 3-6 mm long; seeds round, black,
muricate, 1-1.5 mm in diameter. Late May--Jul. Wet meadows and low prairie;
frequent in the e and c parts; (ME to Man., s to GA and TX).