Atriplex hortensis L., Sp. Pl.: 1053 (1753)
|
publication ID |
https://dx.doi.org/10.3897/phytokeys.116.27301 |
|
persistent identifier |
https://treatment.plazi.org/id/B8480AC5-34EC-476F-991A-5573981EF4FF |
|
treatment provided by |
|
|
scientific name |
Atriplex hortensis L., Sp. Pl.: 1053 (1753) |
| status |
|
4. Atriplex hortensis L., Sp. Pl.: 1053 (1753)
Lectotype (designated by McNeill et al. 1983): Hort. Sicc. Cliff. (BM000647538! image of the lectotype available at http://www.nhm.ac.uk/resources/research-curation/projects/clifford-herbarium/lgimages/BM000647538.JPG).
= A. heterantha Wight, Icon. Pl. Ind. Orient. 5: tab. 1787 (1852). Holotype: [INDIA] Coimbatore, Nov 1849 [Wight] 2481 (K000898565!).
= A. microtheca Moq. in DC., Prodr. 13(2): 91 (1849) nom. illegit., non Fries 1835. Type: not selected.
Description.
Annual up to 150 cm, erect, usually branched. Leaf petioles 1.5-4.0 cm, blades 4.0-15.0(22.0) × 3.5 –7.0(8.0– 20.0) cm, triangular-hastate or ovoid, entire or dentate, basally slightly cordate or rounded, apically obtuse, green or reddish, glabrous or with scattered bladder hairs abaxially. Inflorescence mostly basally leafy, spike-like. As a rule, three kinds of flowers are present: (i) male flowers surrounded by a perianth with (4)5 segments, (ii) bisexual flowers surrounded by a perianth with (4)5 segments (sometimes not observed in the Indian specimens) and (iii) female flowers supported only by two accrescent, basally connate perianth valves forming a bract-like cover up to 12.0(15.0-20.0) mm in diameter, valves sessile or sometimes tapered into a peduncle up to 5 mm long (seen on Indian material). Seeds heteromorphic (three seed types present on one individual). Black seeds (1.6-1.8 mm in diameter) are formed in second (ii) and third (iii) flower types while the brownish ones (2.0-3.5 mm) are usually yielded by female (iii) flowers.
Habitat.
Disturbed places (cultivated in vegetable gardens or as a weed); 2500-3600 m a.s.l. (in our area).
Phenology.
Flowering: July-September; fruiting: September-October.
Distribution.
See Fig. 17 View Figure 17 .
Specimens examined.
INDIA: Jammu & Kashmir: Ladakh, Leh, 1856, Schlagintweit [several sheets s.n., nrs 9 & 10] (BM, G, P04930288); Ladakh, Upschi to Leh, Aug 1856, Schlagintweit 1290 (E); Ladakh, Chushul, 5500 m a.s.l., 24 Sep 1975, M.V. Viswanathan 55009 (BSD); Ladakh, Indus valley, Domkhar Dha, Hanu-Thang vill., 2810 m a.s.l., 31 Aug 2002, L. Klimeš 2554 (PRA); Ladakh, Zanskar Region, S of Padum, 3580 m a.s.l., 1 Sep 2003, L. Klimeš 3418 (PRA); Ladakh, Leh, 3450 m a.s.l., 28 Sep 2003, L. Klimeš 3655 (PRA); Ladakh, Suru Region, Baroo, 2730 m a.s.l., 18 Sep 2004, L. Klimeš 4912 (PRA); Ladakh, Indus valley, Domkhar Dha, Hagnis vill., 3150-3250 m a.s.l., 13 Sep 2006, L. Klimeš 7169 (PRA);
NEPAL: " Napalia " [without precise location and year] 1821, R. Wight 9089 (K, LE).
General distribution.
Eurasia (seems to be native in southern Europe and Turkey only); cultivated and sometimes well-established in Northern Himalaya, North and South America and Australia.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.