Piperia yadonii R. Morgan & Ackerman
Family: Orchidaceae
Yadon's piperia
not available
Plants 10-50(-80) cm. Stems attenuate toward tuberoid, 0.5-3.5 mm diam.; bracts (4-)7-20(-26). Leaves prostrate; blade 11-17 × 2.2-3.9 cm. Inflorescences densely flowered, cylindric, (2-)5-15(-30) cm; rachis shorter than peduncle; bracts (3-)5-8(-11) mm. Flowers green and white, fragrance faint, harsh to honeylike, diurnal; sepals 3-5.5 × 1-2.5 mm; dorsal sepal green with white margins, elliptic-lanceolate; lateral sepals spreading to recurved, white, lanceolate; petals erect-recurved, green with broad outer, narrow inner white borders, lanceolate, falcate, 3-5 × 1.5 mm, inner margins often forming U, apices often connivent; lip recurved, triangular-lanceolate, 2.5-5 × 1.2-2.5 mm; spur deflexed, 2-5 mm; viscidia ovate to broadly elliptic, 0.4-0.5 × 0.3-0.4 mm; rostellum blunt. Capsules 5-9 mm. Seeds cinnamon brown. Flowering late May--early Aug. Monterey pine forest, maritime chaparral; of conservation concern; 0--150 m; Calif. Piperia yadonii, a narrow endemic (Monterey Bay area), bears a superficial resemblance to P. elegans. Much of the P. yadonii habitat has been preempted for residential and golf course development.