백도선선인장

 

학명 : Opuntia microdasys var. albispina Fobe & Backeb. 

Family : Cactaceae

Common Name(s) :

Angel Wings, Polka Dots, Polka Dot Cactus, Honey Bunny, Bunny Ears, Alba Bunny Ears

국표식 등재 국명 : 백도선선인장

일어명 : 白桃扇

 

사진 : 2023.02.25 서울대공원

 

 

 

표지판으로는 솜털가시(glochid)가 노란색인 것을 상아단선이라고 표시한 것 같은데

상아단선에 대해서는 정확한 정보가 없다.

백도선선인장의 솜털가시는 흰색 또는 노란색이라 했으므로 위의 종도 백도선선인장으로 판단된다.

 

  

 

 

설명

 

Description (아래 설명으로는 원종과 백도선선인장의 차이를 알 수 없다)

 

 

Opuntia microdasys var. albispina is a freely clustering cactus with miniature pads with no spines but numerous white hair-like glochids arranged in dense clusters. It forms a dense shrub up to 2 feet (60 cm) tall and up to 5 feet (1.5 m) across. Flowers are lemon yellow, up to 2 inches (5 cm) in diameter, followed by red fruits. They appear in summer.

 

https://worldofsucculents.com/opuntia-microdasys-var-albispina-polka-dots-angel-wings/#:~:text=Opuntia%20microdasys%20var.%20albispina%20is%20a%20freely%20clustering,and%20up%20to%205%20feet%20%281.5%20m%29%20across.

 

원종에 대한 Wikipedia 설명

 

Opuntia microdasys (angel's-wings, bunny ears cactus, bunny cactus or polka-dot cactus) is a species of flowering plant in the cactus family Cactaceae, native and endemic to central and northern Mexico.[1]

 

Description

Opuntia microdasys forms a dense shrub 40–60 cm tall, occasionally more, composed of pad-like stems 6–15 cm long and 4–12 cm broad.

 

Instead of spines it has numerous white or yellow glochids 2–3 mm long in dense clusters. They are barbed and thinner than the finest human hairs, detaching in large numbers upon the slightest touch. If not removed they will cause considerable skin irritation so the plants must be treated with caution.[1]

 

The Latin specific epithet microdasys means “small and hairy”.[2]

 

The yellow flowers appear only rarely. Despite this, it is a very popular cactus in cultivation, partly because of the young plant’s comical resemblance to a rabbit’s head. It has gained the Royal Horticultural Society’s Award of Garden Merit.[3][4]

 

Distribution

Native to Mexico, naturalised in Kenya, Malawi, and Tanzania.[5] One reason for the success of O. microdasys in desert habitats - at home and as an introduction - is its efficient fog collection ability. The spines and hairs have the perfect structure and microstructure to capture and channel fog.[6]

 

Related species

The very closely related Opuntia rufida differs in having reddish-brown glochids(솜털 같은 가시). It occurs further north in northern Mexico, and into western Texas. Some botanists treat the two as a single species.

 

Opuntia rufida 사진

 

 

 

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