Oxalis

Oxalis is a huge genus of about 270 species within 6 subgenera of the family Oxalidaceae found in many parts of the world, but with a large number found in South Africa and South America. Oxalis was the subject of the PBS list topic of the week in November 2003. To read the introduction by Robin Attrill for this topic view this link. Another post with a lot of good background information on this subject was in this list post from David Victor. For the most recent comprehensive information about the names of the species see Clifton, 2004 in References.

The genus Oxalis has a reputation as a weed, and a few species really are weeds in parts of the world. But most are not. The late Michael Vassar, Curator of Floristic Gardens at the Huntington Botanical Garden, played a big role in popularizing Oxalis bulb culture by donating several South African collections to charity fund-raisers in the late 1990s. Many of his selections turned out to be relatively easy to grow, but not invasive in the garden. Download a list of his complete collection here.

Photos 1-2 below taken by Bill Dijk are a collection of Oxalis species painted by botanical artist Zoë Carter from Nelson, New Zealand. Bill has kindly added the names in the second photo. Photos 3-5 show flowers and leaves scanned by Ron Vanderhoff. He also has added the names of the leaves, but the limits of the wiki has meant the file had to be reduced. These photos show the great number of flowers that can be in bloom at the same time in his collection and the great diversity of leaf types of this genus. Photo 6 by Nhu Nguyen shows a bouquet of various species.

Oxalis collection by Zoë Carter, Bill DijkOxalis collection by Zoë Carter, Bill DijkOxalis flowers, Ron VanderhoffOxalis leaves, Ron VanderhoffOxalis leaves identified, Ron VanderhoffOxalis spp., Nhu Nguyen

More information about Oxalis is found on the websites listed below:
Andrew Broome's oxalis site from New Zealand (includes a link to the Oxalis Yahoo group)
Sylvia's site from Sweden has lots of photos of plants she grows in pots because of her climate
Growing Oxalis in California


See these wiki pages Miscellaneous Oxalis - Oxalis flava - Oxalis hirta - Oxalis obtusa - Oxalis pes-caprae - Oxalis purpurea - South African oxalis A-B - South African oxalis C -South African oxalis D-E - South African oxalis F-G - South African oxalis H-K - South African oxalis L-M - South African oxalis N-O - South African oxalis P - South African oxalis R-S - South African oxalis T-Z - South American oxalis or click on the name in the table below to learn about some of the species.


Oxalis species
Oxalis acetosella Oxalis adenodes Oxalis adenophylla Oxalis ambigua
Oxalis annae Oxalis anomala Oxalis argillacea Oxalis articulata
Oxalis asinina Oxalis attaquana Oxalis bifurca Oxalis bowiei
Oxalis brasiliensis Oxalis bulbocastanum Oxalis callosa Oxalis caprina
Oxalis cathara Oxalis clavifolia Oxalis commutata Oxalis comosa
Oxalis compressa Oxalis convexula Oxalis copiosa Oxalis corymbosa
Oxalis decaphylla Oxalis densa Oxalis dentata Oxalis depressa
Oxalis dregei Oxalis engleriana Oxalis enneaphylla Oxalis exserta
Oxalis extensa Oxalis fabaefolia Oxalis flava Oxalis flaviuscula
Oxalis floribunda Oxalis fragrans Oxalis gigantea Oxalis glabra
Oxalis goniorhiza Oxalis gracilis Oxalis haedulipes Oxalis helicoides
Oxalis hirta Oxalis imbricata Oxalis inaequalis Oxalis incarnata
Oxalis inconspicua Oxalis 'Ione Hecker' Oxalis kaajagdensis Oxalis kaasvogdensis
Oxalis karooica Oxalis lasiandra Oxalis latifolia Oxalis lawsonii
Oxalis lichenoides Oxalis livida Oxalis lobata Oxalis luteola
Oxalis macrocarpa Oxalis magnifica Oxalis massoniana Oxalis megalorrhiza
Oxalis meisneri Oxalis melanosticta Oxalis minuta Oxalis monophylla
Oxalis morelosii Oxalis namaquana Oxalis nelsonii Oxalis novemfoliata
Oxalis obliquifolia Oxalis obtusa Oxalis oregana Oxalis palmifrons
Oxalis pardalis Oxalis perdicaria Oxalis pes-caprae Oxalis pocockiae
Oxalis polyphylla Oxalis potamophila Oxalis primuloides Oxalis pulchella
Oxalis purpurea Oxalis pusilla Oxalis salteri Oxalis semiloba
Oxalis smithiana Oxalis sonderiana Oxalis sp. (Mexico) Oxalis sp. MV4674
Oxalis spp. (South African) Oxalis spp. (South America) Oxalis stellata Oxalis stenorrhyncha
Oxalis tenella Oxalis tenuifolia Oxalis tetraphylla Oxalis tomentosa
Oxalis tortuosa Oxalis triangularis Oxalis tuberosa Oxalis uliginosa
Oxalis 'Ute' Oxalis versicolor Oxalis virginea Oxalis zeekoevleyensis

Miscellaneous Oxalis - Oxalis flava - Oxalis hirta - Oxalis obtusa - Oxalis pes-caprae - Oxalis purpurea - South African oxalis A-B - South African oxalis C -South African oxalis D-E - South African oxalis F-G - South African oxalis H-K - South African oxalis L-M - South African oxalis N-O - South African oxalis P - South African oxalis R-S - South African oxalis T-Z - South American oxalis


Return to the PBS wiki Photographs And Information page
Page last modified on October 19, 2014, at 08:30 AM