Catalpa ovata | |
---|---|
Flowers | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Bignoniaceae |
Genus: | Catalpa |
Species: | C. ovata
|
Binomial name | |
Catalpa ovata | |
Synonyms [2] [3] [4] | |
Catalpa ovata, the yellow catalpa [1] [5] or Chinese catalpa [1] ( Chinese: 梓; pinyin: zǐ), is a pod-bearing tree native to China. Compared to C. speciosa, it is much smaller, typically reaching heights between 20 and 30 feet (6 and 9 m). The inflorescences form 4–10-inch-long (100–250 mm) bunches of creamy white flowers with distinctly yellow tinging; individual flowers are about 1 inch (25 mm) wide. They bloom in July and August. [5] The leaves are very similar in shape to those of Paulownia tomentosa, having three lobes (two are abruptly truncated on either edge, with a third, central, slightly acute, pointed lobe forming the leaf apex), and are darkly green. [5] [6] Fruits are very narrow, foot-long pods. [5]
Although native to the more temperate provinces within China ( Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Monggol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang), [1] C. ovata is also cultivated in North America and Europe, and has become a parent of Catalpa × erubescens with the American species Catalpa bignonioides. [1] [5] It is commonly used to make the undersides of qin. [7]
The plant contains dehydro-alpha-lapachone [8] (DAL) which inhibits vessel regeneration, interferes with vessel anastomosis, and limits plexus formation in zebrafish. [9] DAL also controlled the development of the fungi rice blast, tomato late blight, wheat leaf rust, barley powdery mildew and red pepper anthracnose ( Colletotrichum coccodes (Wallr) S Hughes). The chemical was particularly effective in suppressing anthracnose. [10]
Referenced in the Zhuangzi. [11]
Notes: =Kaempferi
Notes: Japon
Media related to Catalpa ovata at Wikimedia Commons Data related to Catalpa ovata at Wikispecies
Catalpa ovata | |
---|---|
Flowers | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Bignoniaceae |
Genus: | Catalpa |
Species: | C. ovata
|
Binomial name | |
Catalpa ovata | |
Synonyms [2] [3] [4] | |
Catalpa ovata, the yellow catalpa [1] [5] or Chinese catalpa [1] ( Chinese: 梓; pinyin: zǐ), is a pod-bearing tree native to China. Compared to C. speciosa, it is much smaller, typically reaching heights between 20 and 30 feet (6 and 9 m). The inflorescences form 4–10-inch-long (100–250 mm) bunches of creamy white flowers with distinctly yellow tinging; individual flowers are about 1 inch (25 mm) wide. They bloom in July and August. [5] The leaves are very similar in shape to those of Paulownia tomentosa, having three lobes (two are abruptly truncated on either edge, with a third, central, slightly acute, pointed lobe forming the leaf apex), and are darkly green. [5] [6] Fruits are very narrow, foot-long pods. [5]
Although native to the more temperate provinces within China ( Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Monggol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Sichuan, Xinjiang), [1] C. ovata is also cultivated in North America and Europe, and has become a parent of Catalpa × erubescens with the American species Catalpa bignonioides. [1] [5] It is commonly used to make the undersides of qin. [7]
The plant contains dehydro-alpha-lapachone [8] (DAL) which inhibits vessel regeneration, interferes with vessel anastomosis, and limits plexus formation in zebrafish. [9] DAL also controlled the development of the fungi rice blast, tomato late blight, wheat leaf rust, barley powdery mildew and red pepper anthracnose ( Colletotrichum coccodes (Wallr) S Hughes). The chemical was particularly effective in suppressing anthracnose. [10]
Referenced in the Zhuangzi. [11]
Notes: =Kaempferi
Notes: Japon
Media related to Catalpa ovata at Wikimedia Commons Data related to Catalpa ovata at Wikispecies