Chenopodium striatiforme Murr
Creators: name: Jonsell, B., Karlsson
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Chenopodium
Chenopodium striatiforme

description: 17. Chenopodium striatiforme Murr  
Figs 3F, I, 11A  
Murr, Deutsche Bot. Monatsschr. 19: 51 (1901).  
- C. strictum subsp. striatiforme (Murr) Uotila (1977). - Described from C Europe.  
C. album subsp. microphyllum (Boenn.) Sterner (1938).  
- C. strictum subsp. microphyllum (Boenn.) M. Jørg. (1973).   
F rannikkosavikka. S östersjömålla.   
Literature. Uotila 1977a.  
Therophyte (summer-annual). 10-40(-100) cm; stem green-striped or red-striped, rarely prominently red, erect to ascending, usually richly branched in the basal part; branches procumbent to ascending. Leaves with petiole 1/2-2/3 the length of the blade; blade bluish green especially below, rhombic to trullate, 2-2.5 (-3.5) cm, slightly more than twice as long as wide; base cuneate, apex acute to obtuse; margin dentate to entire, often reddish. Bracts with elliptic to lanceolate blade; margin entire.  
Inflorescences spike-like; branches elongated or short. Tepals 5, usually connate at base only, keeled, with wide membranous margin and obtuse apex. Stamens 5. Stigmas 2, 0.4-0.8 mm. Nut falling with or without the perianth; pericarp easily detached. Seed horizontal, broadly ovate in outline (length/width ratio 1.1), 1.1-1.2 mm; edge slightly acute; seed-coat black, glossy, smooth or with faint radial striae. - Late summer. [2n=36]  
Distribution. A ballast and grain alien, locally established in some coastal areas; nowadays rarely reported and possibly partly disappeared but, on the other hand, certainly much overlooked. - D Sjæ København 1939, 1969, Brn Blykobbe 1929, Rønne 1865. N Ak Oslo 1882, 1906. S Öl and Gtl scattered (but in Gtl not seen since the 1950's); elsewhere rare and ± casual: Sk Malmö 1922, Kristianstad 1921, 1925, Trolle-Ljungby 1985, Västra Karup 1950, Ahus several records 1921-90, Bl Augerum 1932, Karlskrona several records 1896-1944, Nättraby 1901, Kim Högsby 1961, Kalmar 1968, 1969, 1988, Västervik 1875, 1961, Ög Norrköping 1892, Upl Järfälla 1915, Sollentuna 1925, Älvkarleby 1894, Mpd Timrå 1903. F casual in ports; VTurku 1895, £/Helsinki 1878, 1922, EK Kotka 1964, KP Kokkola 1948, OP Oulu 1950.   
Chenopodium striatiforme  
SE and eastern C Europe; the Baltic Sea area.  
Habitat. Seashores, fields and railway areas on sandy soil; tips, ports, mills and factories.  
Taxonomy. C. striatiforme was earlier regarded as an infraspecific taxon, first under C. album (e.g. Aellen 1960-61) and later under C. strictum (Jørgensen 1973, Uotila 1977a). It is closer to C. strictum, but in some respects it is intermediate between C. album and C. strictum. In cultivation experiments it proved very uniform and clearly different from C. strictum, and species rank seems more suitable.   
Similar species. Chenopodium striatiforme is similar to C. album (15), C. pratericola (12) and C. strictum (18).
description: Published as part of Jonsell, B., Karlsson, 2005, Chenopodiaceae - Fumariaceae (Chenopodium), pp. 4-31 in Flora Nordica 2 on page 23