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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

ERIODICTYON YERBA SANTA

Gary L. Hannan


Perennial herb to shrub. Stem: prostrate to ascending or erect; bark shredding. Leaf: cauline, alternate. Inflorescence: generally open, terminal. Flower: corolla funnel- to urn-shaped, white, lavender, or purple, generally hairy abaxially; stamens included, filaments generally hairy; ovary chambers 2, styles 2, generally hairy. Fruit: 1–3 mm wide; valves 4. Seed: striate, dark brown or black.
11 species: southwestern United States, Mexico. (Greek: wool net, from abaxial leaves) [Ferguson 1998 Syst Bot 23:253–268]
Unabridged etymology: (Greek: erio, wool, plus dictyon, net, from abaxial leaves)
Unabridged references: [Hannan 1988 Amer J Bot 75:579–588]

Key to Eriodictyon

1. Plant low perennial herb or subshrub, stems woody at base or not

2. Plant subshrub, stem erect, 1–3 m ..... E. parryi

2' Plant perennial herb, stem prostrate to ascending, 0.16–0.5 m ..... E. lobbii

1' Plant shrub, stems woody

3. Calyx, corolla stalked-glandular abaxially; corolla urn-shaped, ± constricted at throat

4. Calyx lobes 2.5–4 mm, dense-long-hairy, stalked glands fewer than hairs; corolla 3–5 mm, tube exceeding calyx by < 2 mm ..... E. tomentosum

4' Calyx lobes 4–5 mm, moderate-hairy, stalked glands as many as hairs; corolla 6–10 mm, tube exceeding calyx by > 2 mm ..... E. traskiae

5. Petiole 10–20 mm; leaf blade elliptic, 1.5–4 cm wide; corolla 7–10 mm ..... subsp. smithii

5' Petiole 2–5 mm; leaf blade narrow-elliptic, 1–1.5 cm wide; corolla 6–7 mm ..... subsp. traskiae

3' Calyx, corolla not stalked-glandular abaxially; corolla funnel-shaped, not constricted at throat

6. Leaf linear to lance-linear, 0.2–1.1 cm wide

7. Inflorescence head-like; calyx lobes 6–8 mm, dense-long-hairy ..... E. capitatum

7' Inflorescence open, branched; calyx lobes 2–5 mm, glabrous to sparse-hairy

8. Leaf abaxially with all but midvein obscured by hairs; pedicel, peduncle glabrous, sticky; calyx lobes 3–5 mm, abaxially glabrous, sticky; corolla 11–16 mm, lavender ..... E. altissimum

8' Leaf abaxially with all but midvein not obscured by hairs; pedicel, peduncle sparse-stiff-hairy, not sticky; calyx lobes 2–3 mm, abaxially sparse-stiff-hairy, not sticky; corolla 3–7 mm, white ..... E. angustifolium

6' Leaf lanceolate to oblong or ovate, 1–5 cm wide

9. Leaf adaxially sparse-hairy to dense-tomentose ..... E. crassifolium

10. Leaf adaxially dense-gray- to -white-tomentose; leaf ± ovate, not sticky; corolla 8–16 mm ..... var. crassifolium

10' Leaf adaxially dull ± green, sparse- to moderate-short-hairy; leaf lanceolate, sticky between hairs; corolla 6–10 mm ..... var. nigrescens

9' Leaf adaxially glabrous to sparse-long-wavy-hairy

11. Calyx abaxially glabrous to sparse-hairy, adaxially short-stiff-hairy; corolla 8–12(17) mm, abaxially sparse-hairy; flower buds appearing dark, not gray-hairy ..... E. californicum

11' Calyx dense-long-hairy; corolla 6–8 mm, abaxially dense-long-hairy; flower buds appearing gray-hairy ..... E. trichocalyx

12. Stem sparse- to dense-long-wavy-hairy; leaf adaxially sparse-long-wavy-hairy, abaxially dense-white-tomentose, all but midvein, secondary veins obscured ..... var. lanatum

12' Stem glabrous to sparse-short-hairy; leaf adaxially ± glabrous, sparse-short-hairy mostly on midvein, abaxially sparse-tomentose between yellow-green, glabrous veins in net-like pattern ..... var. trichocalyx

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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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