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(First upload on June 17 2013. Last on July 24 2017) [ 日本語 | English ]

Linaria L., toadflax (ウンラン) Matsuba-unran (マツバウンラン, 松葉海蘭), Canada toadflax, or oldfield toadflax Lifeform: (annual or) biennial forb, with 20-60 cm tall Distribution: native to the North America, exotic to Japan (south to Tohoku District) Habitat: roadsides, and grasslands

Stem: fascicled Leaf: linear with 1-2 mm wide Inflorescence: racemiform Chromosome number: 2n = 12 Synonyms: Nuttallanthus canadensis (L.) D. A. Sutton var. texana (Scheele) Pennell (オオマツバウンラン), corolla ≈ 12 mm long with a long spur

Linaria canadensis in Japan

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1 2 3
[1-3] at the Peace Memorial Park in Hiroshima on March 14 2014. The leaf shape is diverse → 1: leaves on creeping stems, and 2: leaves on erect stems
4 5 6
[4-6] along a paved road near JR Nagasaki Station, northwestern Kyushu, on April 16 2017.

var. texana

1 2 3
[1-3] at West Ariake Pier Park, Tokyo, on May 12 2013.