MISC. PUBLICATION 303, U. S. DEPT. OF AGRICULTURE 



Lycium halimifolium Mill. Matrimony-vine. 



L. vulgare (Ait.) Dunal. 



Range: 2, 4, 9, 13, 14, 15, 16, 22, 23, 24, 25, 27, 28, 29, 30. 

 Site: Dry, well-drained, sun, shade. 

 Fruit: Berry, available August-May. 



A vine or small to large shrub ; sparingly branched, spreading to recumbent ; 

 spiny or unarmed; introduced and more or less naturalized from Europe in 

 the regions indicated ; in the west sometimes considered a weed. 



Lycium hassei, see Lycium richii. 



lycium macrodon Gray. 

 Range: 10, 11. 

 Site: Dry, sun. 



Fruit: Berry, available March-May. 

 A small to large, much-branched, spreading, spiny shrub ; flowers in February. 



Lycium pallidum Miers. Pale desert-thorn. 



Range : 9, 10, 11, 13, 14. 

 Site: Dry, sun. 



Fruit : Berry, available July-August. 



A small to large, widespreading, thorny shrub; flowers April-May; occurs 

 in sandy and other soils; sprouts readily when cut or broken down; often 

 forms thickets. 



Locally important and valuable as browse for livestock, especially on winter 

 range. 



Lycium palmeri, see Lycium richii. 



Lycium parishii Gray. Parish desert-thorn. 



Range: 10. 

 Site: Dry, sun. 

 Fruit: Berry. 

 A small to large, much-branched, short-spined, rigid shrub. 



Lycium parviflorum, see Lycium fierlandieri. 

 lycium pringlei, see Lycium richU. 



lycium puberulum Gray. 

 Range: 11, 17. 

 Site : Dry, sun. 



Fruit: Berry, available in June. 

 A small, spiny, sparingly branched shrub. 



Lycium quadrifidum, see Lycium carolinianum. 



Lycium richii Gray. 



L. palmeri Gray, L. pringlei Gray. 

 Range: 5, 10. 

 Site: Dry, sun. 

 Fruit : Berry. 



A small to large, spiny shrub ; erect or somewhat clambering ; much branched ; 

 sometimes forms dense thickets ; tolerant of saline conditions ; drought re- 

 sistant; tolerant of poor soil. 



Var. hassei (Greene) Johnst., (L. hassei Greene) occurs in region 5 and is 

 almost unarmed. The species called L. verrucosum Eastw. of the San Nicholas 

 Islands is considered a freak originating from this species. It grows in eroded 

 arroyos. 



Lycium spencerae, see Prunus fasciculata. 



Lycium torreyi Gray. Squaw desert-thorn. 



Range : 9, 10, 11, 16, 17. 



Site: Dry, well-drained, moist, sun. 



Fruit: Berry, available June-September. 



A small to large thorny shrub; flowers March-June; much branched and 

 spreading; with heavy spines or unarmed. 



Lycium verrucosum, see Lycium richii. 

 Lycium vulgare, see Lycium haMmifolium. 



