1.
Koeberlinia spinosa
Zuccarini, Flora. 15(2, Beibl.): 74. 1832.
Plants
0.5-10 m, spreading, globose, compact to somewhat open.
Stems
± terete, green twigs thorn-tipped, 25-70 cm.
Leaves
0.2-1.5 × 0.5 mm.
Inflorescences
3-15 mm.
Pedicels
3-6 mm.
Flowers:
sepals greenish white, ovate-deltate, 1-2 mm, glabrous; petals greenish white or cream, obovate or oblanceolate, 3-4.8 × 0.8-1.4 mm; filaments brownish, 2.8-4 mm, flat; anthers 0.8-1 mm, slightly curved; gynophore (stipe) 0.3-0.8 mm; ovary ovoid, 1-1.2 mm; style 0.4-1.4 mm.
Fruits
ca. 5 mm, mucronate from persistent style.
Seeds
3-3.5 mm.
2
n
= 44, 88.
Varieties 3 (3 in the flora): sc, sw United States, n Mexico.
