Olsynium

Olsynium is a genus of 12 species of flowering plants in the family Iridaceae, with 11 of the species native to South America, and the twelfth to western North America. The genus was formerly often included in the related genus Sisyrinchium.

They are perennial herbaceous bulbiferous plants growing to 10-40 cm tall. The leaves are linear, 4-30 cm long and 1-3 mm broad. The flowers are bell-shaped, with six tepals.


Selected species
Olsynium douglasii (syn. Sisyrinchium douglasii, Sisyrinchium grandiflorum) is a flowering plant in the genus Olsynium, native to western North America from southern British Columbia south to northern California, and east to northwest Utah. It is the only species in the genus Olsynium in North America, the remaining 11 species being from South America. It was formerly treated in the related genus Sisyrinchium. It is a perennial herbaceous bulbiferous plant growing to 10-40 cm tall. The leaves are slender linear, 10-30 cm long and 1.5-3 mm broad. The flowers are bell-shaped, 15-25 mm long, with six purple tepals.

Olsynium filifolium

Olsynium scirpoideum

Olsynium junceum

Olsynium biflorum

Olsynium philippii

Callistephus

Callistephus is a genus of flowering plants, in the Asteraceae (daisy family); the genus includes only one species, Callistephus chinensis, the China Aster.

It is native to China, and is an annual plant, growing to 20-80 cm tall... more >>>

Lagunaria

Lagunaria is a monotypic genus in the family Malvaceae. It is an Australian plant endemic to Lord Howe Island, Norfolk Island and parts of coastal Queensland. It has been introduced to many parts of the world. The genus was named in honour of... more >>>

Fatsia

Fatsia is a small genus of three species of evergreen shrubs native to southern Japan and Taiwan. They have stout, sparsely branched stems bearing spirally-arranged, large leathery, palmately lobed leaves 20-50 cm in width, on a petiole up to... more >>>

Echium

Echium is a genus of 60 species of flowering plant in the family Boraginaceae. The type species is Echium vulgare, viper's bugloss. Species of Echium are native to North Africa, Southern Africa, Europe, Madeira and the Canary Islands, as well... more >>>

Tacca

Tacca is a genus of ten species of flowering plants in the order Dioscoreales, native to tropical regions of Africa and southeastern Asia.


Some species
Tacca leontopetaloides or Polynesian arrowroot is... more >>>