Classification
 Nomenclature
Scientific Name:
Polemonium caeruleum L.
Vernacular Name(s):
Jacob's ladder
 Description

Perennial with erect stems to c. 50 cm high; vegetative parts almost glabrous. Leaflets 18–22 (fewer in sub-floral lvs), sessile, 6–25 × 1–8 mm, linear-lanceolate or lanceolate; base broad-cuneate or rounded; apex acute. Cymes terminal, finely glandular-hairy, with up to 15 fls; lowest fls subtended by pinnate bracts with 3–7 leaflets. Pedicels usually < calyx at anthesis. Calyx 4–6 mm long; segments ovate-oblong, obtuse to subacute. Corolla ± rotate, c. 15 mm diam., white; tube c. 4 mm long; lobes rounded. Stamens with basal tuft of hairs. Style > stamens. Capsule 5–7 mm long, broad-ovoid, included in calyx tube. Seed 2.5–3 mm long, acutely 3-angled.

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

 Biostatus
Exotic
 Phenology

Flowering: Nov.–Jan.