Belongs within: Petrosaviidae.
The Asteliaceae are a Southern Hemisphere group of tufted, often epiphytic herbs characterised by an indumentum of surface scales on at least young growth. In members of the genus Astelia, the perianth tube is fleshy or almost absent (Moore & Edgar 1970).
<==Asteliaceae [Astelieae, Astelioideae, Milliganieae]
|--Neoastelia Williams 1987DS04, CC87
| `--*N. spectabilis Williams 1987CC87
|--Collospermum Skottsb. 1934ME70
| |--C. hastatum (Col.) Skottsb. 1934 [=Astelia hastata Col. 1887]ME70
| |--C. microspermum (Col.) Skottsb. 1934 (see below for synonymy)ME70
| |--‘Astelia’ planifolia Col. 1888 (n. d.)ME70
| `--C. spicatum (Col.) Skottsb. 1934 (n. d.) [=Astelia spicata Col. 1882; incl. A. nana Carse 1926]ME70
|--Milligania Hook. 1853 (nom. cons.)B78, CC87
| |--*M. longifolia Hook. 1853CC87
| |--M. densiflora Hook. 1853CC87
| |--M. johnstonii Muell. ex Benth. 1878CC87
| |--M. lindoniana Rodway ex Curtis 1972CC87
| `--M. stylosa (Muell. ex Hook.) Muell. ex Benth. 1878 [=Astelia stylosa Muell. ex Hook. 1858]CC87
`--Astelia Banks & Sol. ex Br. 1810 (nom. cons.) [incl. Funckia Willd. 1808 (nom. rej.)]CC87
| i. s.: ‘*Funckia’ magellanica Willd. 1808CC87
| A. pumilaDS04
|--A. subg. AsteliaME70
| |--A. sect. AsteliaME70
| | |--*A. alpina Br. 1810 [=Funckia alpina (Br.) Kuntze 1891]CC87
| | | |--A. a. var. alpinaCC87
| | | `--A. a. var. novae-hollandiae Skottsb. 1934CC87
| | |--A. linearis Hook. f. 1844ME70 [incl. A. minima Col. 1896C06]
| | | |--A. l. var. linearisME70
| | | `--A. l. var. novae-zelandiae Skottsb. 1934ME70
| | `--A. subulata (Hook. f.) Cheesem. in Chilton 1909 [=A. linearis var. subulata Hook. f. 1844]ME70
| `--A. sect. DesmoneuronME70
| |--A. solandri Cunn. 1837 (see below for synonymy)ME70
| `--A. trinervia Kirk 1872ME70
|--A. (subg. Asteliopsis sect. Isoneuron) banksii Cunn. 1837 (see below for synonymy)ME70
`--A. subg. Tricella Skottsb. 1934CC87
|--A. (subg. *T.) nervosa Hook. f. 1853CC87, ME70 (see below for synonymy)
|--A. australiana (Willis) Moore 1939 [=A. nervosa var. australiana Willis 1939]CC87
|--A. chathamica (Skottsb.) Moore 1966 [=A. nervosa var. chathamica Skottsb. 1934]ME70
|--A. fragrans Col. 1883 [incl. A. nervosa var. sylvestris Ckn. & Allan 1926]ME70
|--A. graminea Moore 1966ME70
|--A. grandis Hook. f. ex Kirk 1872 [=A. nervosa var. grandis (Kirk) Ckn. & Allan 1926]ME70
|--A. nivicola Ckn. ex Cheesem. 1925ME70
| |--A. n. var. nivicolaME70
| `--A. n. var. moriceae Moore 1966ME70
|--A. petriei Ckn. 1899ME70
|--A. psychrocharis Muell. 1855CC87
`--A. skottsbergii Moore 1966ME70
Astelia banksii Cunn. 1837 [incl. A. latifolia Jacques 1862, A. richardii Kunth 1841, Hamelinia veratroides Rich. 1832 non Astelia veratroides Gaud. 1829]ME70
Astelia nervosa Hook. f. 1853CC87, ME70 [incl. A. cockaynei Cheesem. 1925ME70, A. nervosa var. montana Kirk ex Cheesem. 1906ME70, A. montana (Kirk) Ckn. 1908 non Seem. 1868ME70]
Astelia solandri Cunn. 1837 [incl. A. cunninghamii Hook. f. 1853, A. cunninghamii ssp. hookeriana Kirk 1872, A. solandri ssp. hookerana (Kirk) Moore 1966, A. polyneuron Col. 1882, A. subrigida Col. 1887]ME70
Collospermum microspermum (Col.) Skottsb. 1934 [=Astelia microspermum Col. 1885; incl. A. albicans Col. 1885, A. graminifolia Col. 1887]ME70
*Type species of generic name indicated
References
[B78] Bentham, G. 1878. Flora Australiensis: A description of the plants of the Australian Territory vol. 7. Roxburghiaceae to Filices. L. Reeve & Co.: London.
[C06] Cheeseman, T. F. 1906. Manual of the New Zealand Flora. John Mackay, Government Printer: Wellington.
[CC87] Clifford, H. T., J. G. Conran, J. B. Williams, R. J. F. Henderson, H. J. Hewson, E. M. Watson, G. J. Keighery, D. M. Churchill, I. R. H. Telford, A. Thongpukdee, N. H. Brittan, A. S. George, W. T. Stearn & T. D. Macfarlane. 1987. Liliaceae. Flora of Australia 45: 148–419.
[DS04] Davis, J. I., D. W. Stevenson, G. Petersen, O. Seberg, L. M. Campbell, J. V. Freudenstein, D. H. Goldman, C. R. Hardy, F. A. Michelangeli, M. P. Simmons, C. D. Specht, F. Vergara-Silva & M. Gandolfo. 2004. A phylogeny of the monocots, as inferred from rbcL and atpA sequence variation, and a comparison of methods for calculating jackknife and bootstrap values. Systematic Botany 29 (3): 467–510.
[ME70] Moore, L. B., & E. Edgar. 1970. Flora of New Zealand vol. 2. Indigenous Tracheophyta: Monocotyledones except Gramineae. A. R. Shearer, Government Printer: Wellington (New Zealand).