NATIVE WOODY PLANTS OF THE UNITED STATES 991 
Wisteria macrostachya Torr. and Gray. Kentucky wisteria. 
Kraunhia macrostachya (Torr. and Gray) Small. 
Range: 25, 27, 28, 29, 30. 
Site: Well-drained, moist, sun. 
Wruit: Legume; available in October, often persistent until March. 
A robust and vigorous vine; flowers May—July. 
Wisteria speciosa, see Wisteria frutescens. 
Xanthorriza apiifolia, see Xanthorriza simplicissima. 
Xanthorriza simplicissima Marsh. Yellowroct. 
X. apiifolia L’Her. 
Range: 27, 28, 29, 30. 
Site: Dry, well-drained, sun. 
Fruit: Follicle. 
A small ereeping and rooting shrub; flowers April-May; free from insects 
and diseases; may form a dense ground cover. 
Xanthoxylum gpp. 
Observations (in addition to specific records) : Extensively used by kingbird. 
Xanthoxylum americanum Mill. Northern prickly-ash. 
Range: 22, 23, 24, 25, 26, 27, 29, 30. 
Site: Dry (rare), well-drained, moist, sun, shade. 
Fruit: Follicle. 
A large shrub to small tree; flowers April-May; spiny. 
Stomach records: Red-eyed vireo, bobwhite. Observations: Important food 
of pheasants in southern Michigan; cottontail rabbit; eastern chipmunk. 
Xanthoxylum clava-herculis L. Eercules-club. 
Fagara clava-herculis (.) Small. 
Range: 20; 22, 25; 28, 29; 30. 
Site: Dry, well-drained, moist, sun. 
Fruit: Follicle, available May—June. 
A large shrub to small tree; thorny; occurs in sandy or graveliy soils. 
Xanthoxylum fagara (L.) Sarg. Wild lime. 
Xx. pterota H. B.K., Schinus fagara L., Fagara pterota L., F. fagara Small. 
Range: 11, 17, 82. 
Site: Well-drained, sun. 
Fruit: Follicle, available March—September. 
A large shrub to large tree; evergreen, thorny, and dioecious; shrubby west- 
ward. 
Observations: Cottontail rabbit. 
Xanthoxylum texanum, see Amyris texana. 
Xerocassia armata, see Cassia armata. 
Aolisma ferruginea (Walt.) Heller. 
Lyonia rigida Nutt. 
Range: 29, 30. 
Site: Well-drained, sun. 
Fruit: Capsule. 
A large shrub to small tree, or very rarely a large tree; evergreen; widely- 
branched; occurs in sandy and other soils; flowers February—April. 
Xolisma foliosifiora, see Xolisma ligustrina. 
Zolisma fruticosa (Michx.) Nash. 
Lyonia ferruginea Nutt. 
Range: 29, 30. 
Site: Well-drained, sun. 
Fruit: Capsule. 
A small to large evergreen shrub. 
Xolisma ligustrina (L.) Britt. Maleberry. 
Lyonia ligustrina (L.) DC., Arsenococcus ligustrinus (L.) Small, Andromeda 
ligustrina Muhl. 
Range: 27, 28, 29, 30. 
Site: Moist, sun, shade. 
Fruit: Capsule. 
A large shrub; flowers May-July. 
