Comments: Frequent on alluvial soils of the Rio Grande Floodplain. Flowers: Unisexual, dioecious, greenish, in clusters. Leaves: Odd-pinnately compound, opposite or subopposite, usually with 3-5 leaflets, their margine entire or coarsely toothed. MEXICAN ASH (Fraxinus berlandieriana) Stems: A large, unarmed tree up to 10 m tall. Several species of birds use this species for nesting sites, and horses relish the leaves. The leaves are occasionally browsed by deer and cattle. An important ornamental whose fruit is eaten by a number of different birds and mammals. Comments: Common on a variety of soil types throughout the area but most abundant on alluvial soils near the Rio Grande. Flowers: Small, greenish plants monoecious - polygamous. Leaves: Simple, alternate, lanceolate, oblong-lanceolate or ovate-lanceolate, entire or slightly toothed, deciduous. Tree up to 30 m tall bark with irregular patches of corky warts on the main trunk and older branches. HACKBERRY (Celtis laevigate) Stems: A broad-crowned Mesquite provides nesting sites for several species of birds. The legumes are an important source of food for horses, cattle, goats, deer and javelina they are mildly poisonous to cattle and goats if eaten over a prolonged time. Mesquite often forms dense thickets on pastures and range land where it often needs to be controlled. Comments: Abundant on a variety of soil types throughout the area. Fruit: A many-seeded, shiny-brown, yellow, occasionally spotted legume.
Flowers: Yellowish-green, borne in cylindrical spikes. Leaves: Bipinnately compound, alternate or occasionally fascilced, usually with one pair of pinnae and 6-17 pairs of leaflets per pinnae.
MESQUITE (Prosopis glandulosa) Stems: A small tree shrub up to 10 m tall, usually bearing straight spines. Woody Plants of the Lower Rio Grande Valley, Texas
Woody Plants of the Lower Rio Grande Valley
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