Skip to main content
This genus is accepted, and its native range is Peru to NW. Argentina.
A specimen from Kew's Herbarium

[KBu]

Eriksson, R. (2007). A Synopsis of Basellaceae. Kew Bulletin, 62(2), 297-320. Retrieved from http://www.jstor.org/stable/20443356

Morphology General Habit
Decumbent vines to erect, rather compact herbs
Morphology Leaves
Leaves petiolate, distinctly decurrent on stem; leaf blade 2 - 10 x 2 - 8 cm, + cordate, entire, cordate to somewhat sagittate at base, usually acute to acuminate at apex
Morphology Reproductive morphology Flowers
Flowers distinctly pedicellate, bisexual, chasmogamous, scentless, usually shed after anthesis
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments straight in bud, connate and fused at base up to c. 1/2 of their length with petals; anthers basifixed, ovate to trullate deltoid, with thecae connate at apex, dehiscent by apical, pore-like slits
Morphology Reproductive morphology Flowers Calyx
Sepals 1.5 - 2.5 x 1.5 - 2 mm, distinctly shorter than petals, ± patent at anthesis and erect in fruit, ovate to rounded triangular, free from each other, fused only at utmost base with petals, without dorsal structures, obtuse to acute at apex, at anthesis yellowish to reddish, sometimes differing from petal colour, in fruit pale, dry and thin
Morphology Reproductive morphology Flowers Corolla
Petals 4 - 7 x 1.5 - 2.5 uniform, ± patent at anthesis and erect in fruit, ± ovate to trullate, connate only at utmost base, ± long caudate at apex, at anthesis yellowish to reddish, in fruit pale, dry and thin
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary globose to somewhat pyriform, slightly lobed; style 1, not persistent; stigma weakly differentiated to obscurely 3-lobed
Morphology Reproductive morphology Flowers Pedicel
Pedicels 1 - 5.5 mm long, ± slender
Morphology Reproductive morphology Fruits
Fruit rarely developed, globose to pyriform, rugose, enclosed by persistent perianth; viable seeds probably very rare.
Morphology Reproductive morphology Inflorescences
Inflorescences 3 - 8 cm long racemes with slender axis, distinctly pedunculate, with rather few flowers
Morphology Reproductive morphology Inflorescences Bracts
Bracts lanceolate or ovate to triangular
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles subtending flower, distinctly developed, persistent, thin to rather thick, ± triangular to horn like, free
Morphology Stem
Stem glabrous, producing tubers from axillary stolons; tubers globose to elongate, variously coloured
Note
A genus with one species, Ullucus tuberosus, that is subdivided into two subspecies, a cultivated one and its wild progenitor. Various aspects of U. tuberosus, from cultivation to cytology, are extensively presented by, e.g. Sperling (1987) and López & Hermann (2004).
Type
Ullucus tuberosus Caldas.

Native to:

Argentina Northwest, Bolivia, Peru

Introduced into:

Chile North, Colombia, Ecuador, Venezuela

Ullucus Caldas appears in other Kew resources:

First published in Semanar. Nueva Granada: 185 (1809)

Accepted by

  • Eriksson, R. (2007). A synopsis of Basellaceae Kew Bulletin 62: 297-320.

Literature

Kew Bulletin

  • Caldas, F. J. (1809). Semanario del Nuevo Reino de Granada. Bogotá.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0