COMMON NAME: Frost Mat, Onyx Flower
FAMILY: Caryophyllaceae (Pink Family)
Stems many, 3–17 cm
Leaf: stipules 0.1–0.4 mm, ± ovate, scarious, ± fringed, white; blade 3–20 mm, oblanceolate; vein 1
Inflorescence: cyme, axillary; flowers 20–60+; pedicels 0.5–2.5 mm
Flower 2.5–3 mm; hypanthium in fruit ± cylindric; calyx abruptly expanded above; sepals 5, free, ± 1.2–1.5 mm, ovate to reniform, green, fleshy, margin wide, scarious, ± jagged, white, deciduous; petals 0; fertile stamens 1–2, sterile stamens 14–19, ± 0.5 mm, thread-like, arising from hypanthium rim; ovary superior, style 2-branched in upper 1/2, 0.3–0.4 mm
Fruit: utricle, ovoid; teeth 8–10, minute
Seed 1, ± 1 mm, ovoid, ± compressed, tan, red dot near narrow end
Ecology: Sandy slopes, flats, washes
Elevation: 50–700 m.
Bioregional distribution: Desert
Distribution outside California: Arizona, Mexico
Flowering time: Jan–May
Closely related to and possibly same as Scopulophila.