Jepson eFlora: Key page
Vascular Plants of California
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    Index to accepted names and synonyms:
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Key to Frangula

View taxon page for Frangula

(For a list of species in Frangula, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaves deciduousblades thin

2. Fruit 3-stoned;   (50)80–150 mm ..... F. purshiana

3. Leaf blade blue- or green-gray, ± glaucous when fresh, , densely hairy or adaxially velvety, light green, abaxially sparsely to densely hairy ..... subsp. ultramafica (2)

3' Leaf blade green, not papillate, glabrous to sparsely hairy

4. Leaf base ; KR, CaR, n&c SN ..... subsp. annonifolia

4' Leaf base rounded or ; NCo, KR, NCoRO, NCoRH ..... subsp. purshiana

2' Fruit 2(3)-stoned; leaf blade 15–80 mm ..... F. rubra

5. Leaf blade finely hairy ..... subsp. yosemitana

5' Leaf blade glabrous or abaxially  on midrib, veins

6. Twigs gray; leaves clustered on short-shoots ..... subsp. modocensis

6' Twigs red to gray; leaves scattered along stem

7. Leaf base, tip rounded ..... subsp. obtusissima

7' Leaf base, tip  ..... subsp. rubra

1' Leaves semi-deciduous or evergreen, blades ± leathery or thin

8. Leaves semi-deciduous, fruit 2–3-stoned

9. Leaf blade thin, 20–60 mm, ; fruit 2-stoned ..... F. californica subsp. cuspidata (2)

9' Leaf blade ± leathery, 50–100 mm, widely  or  to obovate; fruit 3-stoned ..... F. purshiana subsp. ultramafica (2)

8' Leaves generally evergreen; fruit generally 2-stoned ..... F. californica

10. Leaf blade ± glabrous or abaxially ± puberulent

11. Leaf blade dark green adaxially, bright green or yellow abaxially; fruit 2-stoned ..... subsp. californica

11' Leaf blade ± yellow-green; fruit 3-stoned ..... subsp. occidentalis

10' Leaf blade adaxially glabrous to , abaxially glabrous to tomentose, velvety, or silvery

12. Leaf blade adaxially green, glabrous or minutely puberulent, abaxially glabrous to white-tomentose mixed with long hairs

13. Leaf tip abruptly pointed or not, margin  to dentate-serrate, long hairs conspicuous abaxially; c&s SN, Teh, TR, nw PR, SnJt, SNE, DMoj ..... subsp. cuspidata (2)

13' Leaf tip acute to rounded, margin  to , long hairs inconspicuous abaxially; DMtns (Clark, New York, Providence mtns) ..... subsp. ursina

12' Leaf blade white-tomentose, or adaxially dull green, glabrous, abaxially white-tomentose or velvety to silvery, long hairs 0.

14. Leaf blade narrowly elliptic, abaxially velvety to silvery ..... subsp. tomentella (2)

14' Leaf blade widely elliptic, abaxially white-tomentose or velvety to silvery

15. Leaf blade adaxially white-tomentose, tip ; s KR, NCoRI ..... subsp. crassifolia

15' Leaf blade adaxially glabrous (white-tomentose), tip acute; s KR, NCoR, CaRF, SNF, n SNH, ScV, SnFrB, SCoR, SW ..... subsp. tomentella (2)


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Citation for the whole project: Jepson Flora Project (eds.) . Jepson eFlora, [accessed on ]

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