Oxalis laxa, commonly called dwarf woodsorrel, is a species of flowering plant from South America in the wood-sorrel family. It is an introduced weed in California.
Description
Dwarf woodsorrel is an annual plant with fibrous roots. Its stems grow upwards to as much as 20 centimeters. It has leaves growing both from the base of the plant and attached to its stems by leaf stems as much as 5 cm long. Its leaves are divided into leaflets that are sparely hairy and about 1.3 cm long.
Its flowers have yellow, oblong petals less than 1.2 cm long. The fruit is an egg-shaped capsule to about 5 mm.
Taxonomy
Oxalis laxa was scientifically described and named by William Jackson Hooker and George Arnott Walker Arnott in 1830. It is classified in the genus Oxalis as part of the family Oxalidaceae. It has no accepted varieties, but has four in its 40 synonyms.
Table of Synonyms
Name
Year
Rank
Notes
Acetosella alsinoides (Walp.) Kuntze
1891
species
= het.
Acetosella brevicaulis (Steud.) Kuntze
1891
species
= het., not validly publ.
Acetosella cumingii (Herb.) Kuntze
1891
species
= het.
Acetosella dichotomiflora (Steud.) Kuntze
1891
species
= het.
Acetosella laxa (Hook. & Arn.) Kuntze
1891
species
≡ hom.
Acetosella micrantha (Bertero) Kuntze
1891
species
= het.
Acetosella platycaulis (Steud.) Kuntze
1891
species
= het.
Acetosella puberula Kuntze
1891
species
= het.
Acetosella pygmaea Kuntze
1891
species
= het.
Acetosella vinaquillo (Steud.) Kuntze
1891
species
= het.
Oxalis adenocaulos Phil.
1893
species
= het.
Oxalis alsinoides Walp.
1843
species
= het.
Oxalis brevicaulis Steud.
1841
species
= het., nom. nud.
Oxalis campanensis Lourteig
2000
species
= het.
Oxalis chosicensis R.Knuth
1919
species
= het.
Oxalis corniculata var. sericea R.Knuth
1919
variety
= het.
Oxalis cumingii Herb.
1832
species
= het.
Oxalis deflexa Poepp. ex Progel
1877
species
=...
