펜스테몬(Penstemon)

Penstemon 종류들

https://daehyo49.tistory.com/7811177

 

 

학명 : Penstemon sp.

*  이미지 검색으로는 Penstemon hirsutus (L.) Willd.로 보이나 Penstemon속은 워낙 종이 많아 정확한 종명은 알 수 없다

 

분류 : Plantaginaceae

 

 

 

사진 : 2021.05.23 도봉구 중랑천

 

 

화관, 꽃받침, 꽃자루에 털이 밀생

 

 

아래: 2021.06.01 도봉구 중랑천

 

 

꽃봉오리 상태인 것, 개화한 것, 화관이 떨어지고 암술대만 남은 것

(오래 전에 화관이 떨어진것, 떨어진지 얼마 안되는 것)이 모두 보인다

 

꽃의 생식기 부분: 암술1개(녹색주두가 보이는 것), 수술 4개(검은 꽃밥이 보이는 것)와

헛수술(털이 달린 것); 헛수술의 털은 수분을 용이하기 위한 기작이라 한다

 

 

수술 전체와 암술

 

 

암술과 헛수술

 

 

아래: 2021.06.30 방학동 중랑천

 

 

 

 

 

아래 : 2021.07.19 도봉구 중랑천

 

 

아직 종자가 숙성하지 않았다

 

 

아래 : 2021.08.13 도봉구청  중랑천

 

 

 

 

아래 : 2022.05.27 광릉수목원

 

 

 

 

 

 

아래 : 2024.06.06 광릉수목원

 

 

 

 

 

 

 

 

Penstemon, the beardtongues, is a large genus of roughly 250 species of flowering plants native mostly to the Nearctic (신북구: 북미 온.한대, 그린랜드 지칭), but with a few species also found in the North American portion of the Neotropics. It is the largest genus of flowering plants endemic to North America. Formerly placed in the family Scrophulariaceae by the Cronquist system, new genetic research has placed it in the vastly expanded family Plantaginaceae.

 

They have opposite leaves, partly tube-shaped, and two-lipped flowers and seed capsules. The most distinctive feature of the genus is the prominent staminode, an infertile stamen. The staminode takes a variety of forms in the different species; while typically a long straight filament extending to the mouth of the corolla, some are longer and extremely hairy, giving the general appearance of an open mouth with a fuzzy tongue protruding and inspiring the common name beardtongue.

 

Most penstemons are deciduous or semi-evergreen perennials, the remainder being shrubs or subshrubs. Heights can range from 10 cm to as much as 3 metres.

 

The one Asiatic species previously treated in Penstemon is now placed in a separate genus Pennellianthus. This leaves Penstemon a mostly Nearctic genus, with a few neotropical species. Although widespread across North America, and found in habitats ranging from open desert to moist forests, and up to the alpine zone, they are not typically common within their range.

 

이하 생략

 

https://en.wikipedia.org/wiki/Penstemon

 

 

 

 

 

 

 

 

아래는 종자 퍼온 사진

 

 

 

 

출처 File:Penstemon digitalis seeds.jpg - Wikimedia Commons