Classification
Class
Magnoliopsida Brongn.
Order
Ranunculales Juss. ex Bercht. & J.Presl
Family
Ranunculaceae
Genus
Ceratocephala Moench
 Nomenclature
Scientific Name:
Ceratocephala pungens Garn.-Jones, New Zealand J. Bot. 22: 135 (1984)
 Description

Small tufted annual herb, 1.5-2 cm tall. Leaves all rosulate, broadly spathulate in outline; lamina transversely ovate, trilobed, each lobe again divided into two or three oblong segments, finely woollyhairy, 4-8 × 3-10 mm; petiole flattened, (5-)8-10(- 15) mm long, expanded below halfway into a membranous sheathing base. Flowers solitary, sessile or on short erect woolly-hairy peduncles 2-5 mm long. Sepals linear-oblanceolate, woolly beneath, 4- 5 mm. Petals yellow, about as long as sepals, limb linear-oblanceolate, narrowed to short claw; nectary a shallow pocket at base of limb. Receptacle glabrous, elongating only slightly in fruit. Achenes 20-30, woolly-hairy, 3-4 × 1.5 mm; keel flattened, triangular; empty cells swollen, nearly touching at upper margin; beak erect or erectopatent, straight, slender, not flattened, spinous, 1-1.5 mm long.

[Reproduced from Garnock-Jones (1984, New Zealand J. Bot. 22: 135-137) with permission from The Royal Society of New Zealand.]

 Biostatus
Indigenous (Non-endemic)
 Bibliography
de Lange, P.J.; Norton, D.A.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Hitchmough, R.; Townsend, A.J. 2009: Threatened and uncommon plants of New Zealand (2008 revision). New Zealand Journal of Botany 47: 61–96. [Nationally Critical]
de Lange, P.J.; Rolfe, J.R.; Barkla J.W.; Courtney, S.P.; Champion, P.D.; Perrie, L.R.; Beadel, S.N.; Ford, K.A.; Breitwieser, I.; Schönberger, I.; Hindmarsh-Walls, R.; Heenan, P.B.; Ladley, K. 2018: Conservation status of New Zealand indigenous vascular plants, 2017. New Zealand Threat Classification Series. No. 22. [Nationally Critical]
de Lange, P.J.; Rolfe, J.R.; Champion, P.D.; Courtney, S.P.; Heenan, P.B.; Barkla, J.W.; Cameron, E.K.; Norton, D.A.; Hitchmough, R.A. 2013: Conservation status of New Zealand indigenous vascular plants, 2012. New Zealand Threat Classification Series 3. Department of Conservation, Wellington. [Nationally Critical]
Garnock-Jones, P.J. 1984: Ceratocephalus pungens (Ranunculaceae), a new species from New Zealand. New Zealand Journal of Botany 22: 135–137.