W136 



YELLOW OWLCLOVER 



Orthocar'pus lu'teus 



Flowers in bracted end clusters (spikes); 

 bracts green, leaflike, finely hairy, 3- to 6-cleft, 

 with linear, pointed divisions 



United petals (corolla) yellow, about % to 

 K in. long, strongly 2-lipped ; upper lip (galea) 

 erect, slightly arched, equalling the 3-lobed, 

 saclike lower lip 



Stamens 4, in 2 pairs, ascending und_er the 

 upper lip; pollen sacs (anthers) dissimilar, 

 one attached to stalk (filament) by its middle 

 and the other by one end 



Outer united flower parts (calyx) tubular, 

 about % in. long, long-hairy, nearly equally 

 4-lobed, the lobes short 



Leaves alternate, stalkless, linear-lance- 

 shaped to very narrow, entire to (rarely) 

 3-lobed, long-pointed 



Seed pod* (capsule) oblong, 2-celled, splitting 

 down the back of each cell; seeds numerous, 

 small, ridged, net-veined 



Stems' usually simple, erect, up to 16 in. 

 high, more or less hairy 



Taproot slender, annual 



Yellow owlclover, sometimes called yellow orthocarp, is a relatively small 

 annual herb ranging from British Columbia to Saskatchewan, Nebraska, New 

 Mexico, and California. It grows in a wide variety of soils, both dry and 

 moist, from the sagebrush belt upwards to the spruce-fir belt. The species 

 is probably most common on grasslands or in grass-weed types but also grows 

 in brush and timber types. It occurs most abundantly in meadows and parks 



