천일홍

 

학명 : Gomphrena globosa L. 

분류 : Amaranthaceae

일어명 : センニチコウ（千日紅)

중국어명 : 千日红

학명 풀이 

Gomphrena : From the Latin gomphaena, the ancient classical name for an amaranth

globosa : 구형

 

 

사진: 2020.10.28 도봉구 중랑천

 

천일홍은 많은 소화가  두상으로 밀집해 있다. 꽃잎으로 보이는 것은 포이다.

소화의 화피는 이 포에 가려져 잘 보이지 않고 포의 선단에  희게 보이는 수술의 끝 부분만 보인다

 

소화에서 진한 붉은색이 소포일 것이다. 안쪽의 연한 붉은색이 화피로 보인다

화피 바깥쪽은 양모 같은 털이 밀생한다.  화피 선단의 안쪽에 수술대 갈라진 것이 보인다.

수술대는 선단만 갈라지고 아랫부분은 통으로 합생한다고 한다  

 

 

아래 : 2022.07.29 세종식물원

 

 

아래 : 2022.08.20 화성우리꽃식물원

 

 

 

 

 

FOC 설명

 

Gomphrena globosa Linnaeus, Sp. Pl. 1: 224. 1753.

千日红 qian ri hong

(설명)

Herbs annual, erect, 20-60 cm tall. Stem stout, branched; branches slightly quadrangular, gray strigose, slightly inflated at nodes. Petiole 1-1.5 cm, long gray hairy; leaf blade oblong or oblong-obovate, 3.5-13 × 1.5-5 cm, papery, long white hairy and ciliate, narrowing toward base, margin undulate, apex acute or obtuse. Heads terminal, 1-3, usually purple, sometimes light purple or white, 2-2.5 cm in diam. Bracts 2, opposite, green, ovate or cordate, 1-1.5 cm, gray hairy; bracts white, purple at apex, ovate, 3-5 mm; bracteoles purple, triangular-lanceolate, much longer than bracts, 1-1.2 cm. Tepals not rigid after anthesis, lanceolate, 5-6 mm, outside densely white lanose, apex acuminate. Filaments connate into a tube, 5-parted at apex. Styles linear, shorter than tube of stamens; stigmas 2, furcate. Utricles subglobose, 2-2.5 mm in diam. Seeds brown, shiny, reniform. Fl. and fr. Jun-Sep.

(생육지와 분포)

Widely cultivated. Fujian, Guangxi, Guizhou, Hebei, Hubei, Shanxi, Sichuan, Xinjiang, Zhejiang [native to neotropics; cultivated and naturalized throughout tropical Asia].

 

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200007002

 

 

영어 위키

Gomphrena globosa, commonly known as globe amaranth, makhmali, and vadamalli, is an edible plant from the family Amaranthaceae. The round-shaped flower inflorescences are a visually dominant feature and cultivars have been propagated to exhibit shades of magenta, purple, red, orange, white, pink, and lilac. Within the flowerheads, the true flowers are small and inconspicuous.

 

Gomphrena globosa is native to Central America including regions Panama, and Guatemala, but is now grown globally. As a tropical annual plant, G. globosa blooms continuously throughout summer and early fall. It is very heat tolerant and fairly drought resistant, but grows best in full sun and regular moisture. The plant fixes carbon through the C4 pathway. At maturity, the flowerheads are approximately 4 cm long and the plant grows up to 24 inches in height.

 

Gomphrena globosa is an outcrossing species that is pollinated by butterflies, bees, and other insects. Floral volatiles likely play a significant role in the reproductive success of the plant by promoting the attraction of pollinators.

 

이하 생략

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

 

 

 

아래는 FOC 세밀화

 

 

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꽃의 구조 (퍼온 사진)

 

 

 

출처: http://www.botany.hawaii.edu/faculty/carr/amaranth.htm