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Key to Boraginaceae


Sarah Taylor

Perennial herb or generally annual, hairy. Leaf: cauline, generally alternate, simple, margin crenate-dentate or generally entire, wavy, flat, or rolled under. Inflorescence: heads or generally clusters, terminal, not coiled, or flowers 1–2 in leaf axils; bracts 0 or generally leaf-like. Flower: calyx generally free from ovary; corolla salverform to bell-shaped, occasionally cylindric; stamens generally attached to corolla at different levels, generally unequal, part fused to corolla generally narrow-winged, scales at base 0; styles 1–2. Fruit: generally loculicidal, ovoid to elliptic. Seed: generally many, small, red-brown, brown, black, or yellow to orange.
± 55 species: southwestern United States, tropical America, Hawaii. (Greek: a stream) Nama lobbii A. Gray now in Eriodictyon.
Unabridged references: [Ferguson 1998 Syst Bot 23:253–268; Hitchcock 1933 Amer J Bot 20:415–430, 518–534]

Key to Nama

N. densum Lemmon
Hairs generally dense, stiff, generally appressed, bases generally swollen. Stem: prostrate, forked. Leaf: sessile, lanceolate to oblanceolate. Inflorescence: pedicels 0–1 mm. Flower: calyx lobes lance-linear; corolla cylindric to funnel-shaped, white to pale purple, limb < 3.5 mm diam, lobes < 2 mm wide; fused part of filament unwinged; style 1, lobes 2, < 1/2 length. Fruit: 2–4 mm. Seed: 0.6–0.9 mm, generally elliptic to ovoid, angled on underside, brown to black, smooth to cross-ridged. [Online Interchange]

N. densum var. densum
Plant gray-canescent, hairs generally spreading, rough. Flower: corolla 2–5 mm, generally narrowed below limb; stamens attached ± 1 mm above corolla base; style 0.3–1 mm. Seed: generally shiny, generally smooth.
2n=14. Sandy or gravelly flats, slopes; 880–3560 m. e High Cascade Range, n&c High Sierra Nevada, Great Basin Floristic Province; Oregon, western Nevada. May–Jul [Online Interchange]

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Citation for this treatment: [Author of taxon treatment] 2012. Nama, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Apr 17 2014

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Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.