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Aponogeton distachyos
CAPE-PONDWEED

Higher Taxonomy
Family: AponogetonaceaeView Description 

Common Name: CAPE-PONDWEED FAMILY
Habit: Perennial herb from corm, tuber, or short, thick rhizome, aquatic, glabrous; sap milky. Leaf: alternate, simple, [generally submersed] or floating, petioled, basal in opposite pairs; blade expanded or not, elliptic to lanceolate if floating. Inflorescence: terminal, scape above water, generally spike or panicle with 2--3(10) spike-like branches, subtended by conspicuous, deciduous bract. Flower: bisexual [unisexual], bilateral; perianth parts [0]1[6], generally petal-like, white or yellow; stamens 6--18 in 2 series or 6--50 in 3--4 series; pistils 2--6(9), fused +- 1/2--2/3, separating in fruit, ovary superior, chamber 1, ovules 1--12, style short, stigmatic surface grooved. Fruit: follicle, leathery. Seed: 4; embryo straight.
Genera In Family: 1 genus, +- 54 species: tropical Asia, Australia, southern Africa.
eFlora Treatment Author: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes
Scientific Editor: Thomas J. Rosatti.
Genus: AponogetonView Description 


Etymology: (Greek: from aquatic habitat)

Aponogeton distachyos L. f.
NATURALIZED
Leaf: petiole to 100 cm; blade 6--23 cm, +- narrow-lanceolate to -elliptic. Inflorescence: panicle of generally 2 spike-like branches, emergent; bract +- 3 cm; flowers in 2 rows, +- on 1-side of axis. Flower: perianth part 1, white, enlarging, turning green in fruit, base wide; stamens many. Fruit: to 22 mm, curved or straight; beak terminal, +- 5 mm.
Ecology: Ponds; Elevation: < 150 m. Bioregional Distribution: c-w SnFrB, s SCo, expected elsewhere; Distribution Outside California: native to southern Africa. Flowering Time: Feb--Apr Note: Widely cultivated for aquaria, often escaping but generally a waif.
Synonyms: Aponogeton distachyon, orth. var.
eFlora Treatment Author: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes
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botanical illustration including Aponogeton distachyos

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Citation for this treatment: Robert F. Thorne, C. Barre Hellquist & Robert R. Haynes 2016. Aponogeton distachyos, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=13649, accessed on December 09, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 09, 2016.


Geographic subdivisions for Aponogeton distachyos:
c-w SnFrB, s SCo, expected elsewhere;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.