Rhizome to c. 2–3 mm in diam. Cauline leaves c. 2–4 mm wide; auricles ±absent. Lower bract reduced, usually to 1–2 cm long, rarely to 6.4 cm. Inflorescence of 1–4 dark globose many-flowered heads c. 11–15 mm in diam. Tepals c. 3.5–4.7 mm long. Anthers 1.1–1.8 mm long; filaments 0.4–0.9 mm long; style 1.0–1.4 mm long; stigmas c. 1–2 mm long. Capsule 3.0–4.5 (–5.5) mm long.
Coastal Pacific United States, from Washington to California; northernmost Mexico (Baja California). 73: ORE, WAS. 76: CAL. 79: MXN.
76. CALIFORNIA: San Francisco, Lone Mtn, A.Kellogg [G.Engelmann, Herb. Junc. Bor.-Amer. Norm.] 96 (W); San Francisco, 1867, H.N.Bolander (W); San Francisco, E.Lee 870 (UC-JEPS); [without detailed locality], A.Kellogg & W.Hartford 1054 (W); San Mateo, J.Burtt Davy 756 (UC-JEPS); San Luis Obispo Co., Dune Lakes Gun Club, ca. 5 km S of Oceano, 22 Jun 1949, M.A.Nobs & S.G.Smith 832 (WTU).
Meadows, sandy places and borders of swamps, 100–300 m.