Pomaderris vellea, copyright Melburnian.

Belongs within: Rhamnaceae.

Pomaderris is a genus of hairy shrubs and small trees found in Australia and New Zealand. The New Zealand species P. kumeraho has historically been referred to as ‘gumdigger’s soap’ in reference to its flowers being used to form a lather in water.

Characters (from Harden 1990): Shrubs or occasionally small trees; young stems, lower surface of leaves and inflorescences more or less tomentose, hairs generally stellate or mixed with, or concealed by, longer simple hairs. Leaves simple, alternate, petiolate; stipules brown, scarious, usually shed early. Flowers usually yellow or sometimes whitish, mostly c. 2 mm long, clustered in small cymes mostly grouped into terminal panicles or corymbs, sometimes in head-like clusters; bracts surrounding buds usually shed early. Hypanthium fused to ovary and disc. Sepals 5, often reflexed. Petals absent or 5 and often falling early, not enclosing the stamens. Stamens 5; filaments usually long and incurved. Disc annular, surrounding the base of the ovary. Ovary more or less half-inferior. Capsule septicidal, generally fused for about half its length to hypanthium; separating into 3 mericarps that open on inner face. Mostly flowering in spring, with buds apparent for many months before flowers open.

<==Pomaderris Labill. 1804A61
    |--P. andromedifoliaB00
    |--P. angustifoliaH90
    |--P. apetala Labill. 1804 [incl. P. mollis Col. 1893, P. tainui Hector 1879]A61
    |--P. argyrophyllaB00
    |--P. aspera Sieb. ex DC. 1825A61
    |--P. banksii Ettingshausen 1886F71
    |--P. betulinaSK93
    |--P. brogoensisH90
    |--P. brunneaH90
    |--P. cinereaH90
    |--P. cocoparranaH90
    |--P. costataH90
    |--P. cotoneasterB00
    |--P. discolor DC. 1825A61
    |--P. edgerleyi Hooker 1864L97, A61 [=P. prunifolia var. edgerleyi (Hooker) Moore in Allan 1961A61]
    |--P. elachophyllaH90
    |--P. ellipticaSK93 [incl. P. multiflora Sieb. ex DC. 1825H90, A61]
    |--P. eriocephalaB00
    |--P. ferrugineaB00
    |--P. gilmouriiH90
    |    |--P. g. var. gilmouriiH90
    |    `--P. g. var. canaH90
    |--P. hamiltonii Moore in Allan 1961A61
    |--P. helianthemifoliaH90
    |--P. intermedia Sieb. ex DC. 1825A61
    |--P. kumeraho Cunn. 1839A61
    |--P. lanigeraB00
    |--P. ledifoliaH90
    |--P. ligustrinaSK93
    |--P. nitidulaH90
    |--P. notataH90
    |--P. oraria Muell. 1858 [=P. ovaria]A61
    |--P. pallidaH90
    |--P. paniculosaL97
    |    |--P. p. var. paniculosaL97
    |    `--P. p. var. novae-zelandiaeL97 [=P. oraria var. novae-zelandiae Moore in Allan 1961A61]
    |--P. parrisiaeH90
    |--P. paucifloraH90
    |--P. phylicifolia Lodd. ex Link 1821A61
    |    |--P. p. var. phylicifoliaA61
    |    |--P. p. var. ericifolia (Hook.) Moore in Allan 1961 [=P. ericifolia Hook. 1834; incl. P. amoena Col. 1886]A61
    |    |--P. p. var. ericoidesH90
    |    `--P. p. var. polifolia (Reiss. & Muell.) Moore in Allan 1961 [=P. polifolia Reiss. & Muell. 1858]A61
    |--P. prunifolia Cunn. ex Fenzl 1837A61
    |--P. queenslandicaH90
    |--P. rugosa Cheesem. 1925A61
    |--P. sericeaH90
    |--P. sieberiana Wakefield 1951A61
    |--P. subcapitataH90
    |--P. velleaH90
    |--P. velutinaH90
    `--P. virgataH90

*Type species of generic name indicated


[A61] Allan, H. H. 1961. Flora of New Zealand vol. 1. Indigenous Tracheophyta: Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledones. R. E. Owen, Government Printer: Wellington (New Zealand).

[B00] Braby, M. F. 2000. Butterflies of Australia: their identification, biology and distribution vol. 2. CSIRO Publishing: Collingwood (Victoria).

[F71] Fletcher, H. O. 1971. Catalogue of type specimens of fossils in the Australian Museum, Sydney. Australian Museum Memoir 13: 1–167.

[H90] Harden, G. J. (ed.) 1990. Flora of New South Wales vol. 1. New South Wales University Press.

[L97] Lange, P. J. de. 1997. Hebe brevifolia (Scrophulariaceae)—an ultramafic endemic of the Surville Cliffs, North Cape, New Zealand. New Zealand Journal of Botany 35: 1–8.

[SK93] Schirarend, C., & E. Köhler. 1993. Rhamnaceae Juss. World Pollen and Spore Flora 17–18: 1–53.

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