Classification
 Nomenclature
Scientific Name:
Pyracantha crenatoserrata (Hance) Rehder
Vernacular Name(s):
Firethorn
 Description

Evergreen shrub to c. 2 m high; stems generally dense and ± spreading, often spine-tipped; very young stems brownish tomentose; older stems brown and shiny. Lf petiole 2–15 mm long, channelled above, glabrate; blade 2–5.7 × 1–2.2 cm, oblanceolate to obovate, subtruncate to rounded at apex, sometimes ± mucronulate, cuneate at base, deep shining green and glabrous above, pale green and glabrous below; margins almost entire or shallowly crenate-serrate in distal ⅔. Corymbs c. 20–40 mm across; pedicels c. 5–15 mm long, shiny and with scattered hairs. Sepals rounded or very broadly ovate, c. 1 mm long, glabrous, or sometimes with a few hairs, shining, mucronulate. Petals ± suborbicular, 2.5–3.5 mm diam., rounded, white or almost so. Stamens slightly < petals. Fr. depressed-globose, 5–6 mm wide across top, red or orange-red, glossy.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Exotic
 Phenology

Flowering: Nov.–Dec.; Fruiting: May–Aug.

 Bibliography
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.