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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. 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.
Shrub, ± evergreen; thorns often leafy or branched.
Leaf: simple, ± evergreen, margin generally rolled under, unlobed, entire to toothed; stipules early- deciduous; petiole short.
Inflorescence: raceme or panicle at ends of short- shoots; pedicel bractlets 0.
Flower: hypanthium bractlets 0; sepals persistent; petals white; stamens 20, fused at base; ovary 1/2-inferior, chambers 5.
Fruit: pome, drupe-like, ± spheric or depressed-spheric, open at top, stones 5, free, 2-ovuled.
10 species: Medit, Asia. (Greek: fire thorn, from fruit color, thorns) Fruiting Jun–Apr.
1. Lf generally serrate to crenate over much of margin
2. Lf tip obtuse or ± notched, oblong-obovate to obovate; pedicels glabrous or sparsely hairy in flower; stones ± black ..... P. fortuneana
2' Lf tip generally acute, generally oblong-elliptic to lanceolate, elliptic, or ovate (rarely oblanceolate in some Pyracantha coccinea); pedicels generally hairy in flower; stones brown
3. Hypanthium hairy in flower; new growth gray-hairy; leaves on vigorous shoots generally elliptic ..... [P. coccinea]
3' Hypanthium glabrous in flower; new growth rusty-hairy; leaves on vigorous shoots narrow-oblong-elliptic ..... [P. crenulata]
1' Lf generally entire or with a few well separated low or rounded teeth toward tip
4. Sepals in fruit, young leaves densely gray-hairy abaxially; leaves generally narrowly oblong to ± oblanceolate ..... P. angustifolia
4' Sepals in fruit, young leaves ± glabrous or ± rusty- or yellow-brown-hairy abaxially; leaves narrowly oblanceolate to elliptic
5. Lvs generally widest near middle, tips generally obtuse or abruptly soft-pointed; petals generally ovate, 4–5 mm ..... [P. atalantioides]
5' Lvs generally widest above middle, tips generally truncate or ± notched; petals generally round or widely elliptic, 3–4 mm ..... P. koidzumii
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
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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