Sibara filifolia

(Greene) Greene

Pittonia 3: 11. 1896.

EndemicConservation concern
Basionym: Cardamine filifolia Greene Pittonia 1: 30. 1887
Synonyms: Arabis filifolia (Greene) Greene
Treatment appears in FNA Volume 7. Treatment on page 694. Mentioned on page 693.

Plants (glaucous), glabrous throughout. Stems unbranched or branched (few) distally, 1.5–3dm. Basal leaves (not seen), withered by flowering. Cauline leaves: petiole 0.4–1.6 cm; blade margins pectinate or pinnatisect, lobes filiform to linear, 0.5–1.5 cm × 0.2–0.8 mm, margins entire. Racemes (lax); rachis flexuous. Fruiting pedicels divaricate-ascending, straight, (2–)3–10(–15) mm. Flowers: sepals 2.2–3 × 0.7–1 mm; petals purple or lavender, 3.5–6 × 2–3 mm, claw ca. 1.5 mm; median filaments 2–2.7 mm; anthers oblong, 0.6–0.8 mm. Fruits divaricate-ascending, straight, subtorulose, 2.5–4.1 cm × 0.7–0.9 mm; ovules 32–40 per ovary; style 0.5–0.8 mm. Seeds 1–1.3 × 0.6–0.9 mm.


Phenology: Flowering Apr.
Habitat: Dry ridges
Elevation: ca. 0 m

Discussion

Of conservation concern.

Sibara filifolia is known from Santa Cruz Island. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Selected References

None.

Lower Taxa

None.