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(First upload on September 10 2010. Last on November 19 2022) [ 日本語 | English ]

Heliopsis helianthoides (L.) Sweet






Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

Heliopsis Pers. (キクイモモドキ)
Kikuimomodoki (キクイモモドキ, 菊芋擬), smooth oxeye or false sunflower
Life form: perennial forb
Distribution: northern America

probably introduced to Japan in the middle of Meiji Era
Habitat: dry to medium, well-drained soil in full sun, e.g., disturbed areas such as raodsides

Hokkaido Blue List: B

Leaf: opposite ↔ alternate = Helianthus debilis Nutt.
Seed dispersal: wind
Chromosome number: 2n = 28
Use: gardening
Synonyms:

Heliopsis helianthoides (L.) Sweet ssp. scabra (Dunal) T. R. Fisher
Heliopsis scabra Dunal

Cultivars:
var. scabra (Dunal) Fernald (アラゲキクイモモドキ*)

cvs. Asahi, Benzinggold, Light of Loddon, Spitzentänzerin, Waterperry Gold (*: tentative)

索引

Heliopsis helianthoides in Hokkaido


ST1 ST2 ST3
ST4 ST5 ST6
[1-3] at N17/W3, North Ward, Sapporo. [1] on July 14 2010. [2] on July 14 2010. [3] close-up of the tops of a ray flower on August 21 2010. [4-6] escaped near the training hall of Japanese archery, Hokkaido University, on July 23 2016. Discard; at N17/W3 on July 28 2010. Record: in a flower garden, N26/W1, North Ward, Sapporo, on July 13 2018.

var. scabra

ST1 ST2 ST3
[1-3] cv. Asahi near a kindergarten in the campus of Hokkaido University, Sapporo, on July 31 2017. Records: near the main gate of Hokkaido University on April 27 2020.

cv. Loraine sunshine (variegated)

ST1 ST2 ST3
[1-3] in a small flower garden biside a cafe in N21/E1, East Ward, Sapporo, on July 2 2022.

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