Metastelma arizonicum

Description

Plant: vine;stems pubescent in lines above the petioles Leaves: oblong (the revolute margins often giving a linear appearance,especially in dried material),0.6-3 cm long,0.3-0.5 cm broad,glabrous,sparsely pubescent to glabrate on the midvein above and beneath,the margins sparsely ciliate;petioles pubescent above,2-3 mm long INFLORESCENCE: subsessile,umbelliform,ca.1 cm across Flowers: 3-4 mm long;calyx lobes ca.2 mm long;corolla whitish to yellowish,campanulate,the tube ca.1 mm long,the lobes narrowly ovate,2-4 mm long,densely pilose inside,the tips recurved;crown segments distinct,1-2 mm long,erect,linear-lanceolate,slightly surpassing the stigma-head;anther wings ca.0.4 mm long;corpusculum 0.2 mm long,the pollinia oblanceolate,ca.0.25 mm long;stigma head apically rounded Fruit: FOLLICLES 3-6(-7) cm long Misc: Rocky slopes and canyons of desert mt.ranges;450-1350 m (1500-4500 ft);all year (mostly May-Oct).