Classification
 Nomenclature
Scientific Name:
Buddleja davidii Franch., Nouv. Arch. Mus. Hist. Nat., sér. 2, 10: 65 (1888)
Vernacular Name(s):
Buddleia; butterfly bush; orange eye butterfly bush; Summer lilac
 Description

Deciduous shrub 1–3–(4) m high. Shoots obtusely angled, floccose, tomentose when young. Lvs with petiole to c. 1 cm long or sometimes subsessile just below infl. Stipules to c. 5 mm wide, broader than long. Lamina c. 6–20 × 2.5–8 cm, ovate, less commonly lanceolate, glabrous or nearly so above, whitish or greyish tomentose below, serrulate or crenulate, occasionally with coarser teeth; base cuneate; apex acuminate. Panicles c. 30 × 5 cm, elongated and broadly cylindric, composed of dense fragrant fls; branches tomentose; pedicels very short. Calyx c. 2 mm long, tomentose; teeth < tube, lanceolate. Corolla tube 7–10 mm long when fresh, mauve to purple, orange inside, hairy outside or, less commonly, glabrous; lobes 2.5–4 mm long, obovate, mauve to purple (sometimes white in cultivation). Stamens inserted 1/2-⅔ along tube; anthers sessile. Style not reaching level of stamens. Ovary glabrous or nearly so. Capsule 5–10 mm long, cylindric-obovoid, glabrous.

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

 Biostatus
Exotic
 Phenology

Flowering: Dec.–Feb.–(Apr.)

 Bibliography
Biosecurity New Zealand 2012: Regional Pest Management Strategies Database. http://www.biosecurityperformance.maf.govt.nz/
Franchet, A. 1888 ("1887–1888"): Plantae Davidianae ex Sinarum Imperio, deuxième partie (suite).Plantes de Thibet Oriental. Nouvelles Archives du Muséum d'Histoire Naturelle, sér. 2, 10: 33–198.
Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.
Wilcox, M.; Young, M.; Baynes, H. 2005: Plants of the Auckland Zoo. 20/08/05. Auckland Botanical Society Journal 60(2): 66–82.