• HOME
  1. 日本語
  2. English
• Personal Info.
  1. CV
  2. For candidates
  3. Give me job!
  4. Recent(?) Photos
  5. Master/doctor theses
• Education
  1. Catalog
  2. HUSTEP
  3. Ecology
  4. Natural env. studies
  5. Environ. conserv.
  6. Field trip for Env. Res.
     
  7. Eco-campus(plants)
  8. Symbiosis in nature
  9. Beadroll
  10. Glossary(References)
• Research
  1. Abstract
  2. Volcanic succession
  3. Wildfire ecology
     
  4. Wetland conservation
  5. Skislope vegetation
  6. Mining
  7. Pub: English
  8. Pub: Japanese
• Hobby · Link
  1. Yoshida
  2. Plant taxonomy
  3. Plants
  4. Cup of tea
  5. Western Australia
  6. Link
  7. Contact

(First upload on May 29 2013. Last on September 9 2017) [ 日本語 | English ]

Erigeron L. (ムカシヨモギ) Harujion (ハルジオン, 春紫苑), Philadelphia fleabane (ハルジョオン, カンザシバナ) Lifeform: perennial forb with rosette ≈ 80 cm high → weed (雑草) Distribution: native to the North America (probably introduced in Taisho Era and now widespread in Japan, including Hokkaido)

Habitat: roadsides, grasslands, meadows, etc. → biological invasion (生物学的侵入) Hokkaido Blue List: A3 Flower: white - pink Seed dispersal: wind Leaf/stem: rough hair

Erigeron philadelphicus in Japan

---

1 2 3
4 5 6
[1-3] at West Ariake Pier Park, Tokyo, on May 12 2013. [4/5] at Oshamanbe Amedas Station, southern Hokkaido, on June 15 2015. [6] at a bank along Sophia Street, Chiyoda Ward, Tokyo, on May 26 2017.