Plant of the month August,2005
Eng (thai)

 

 

Impatiens kerriae Craib, Kew Bull. 1926, 161. 1926.
Balsaminaceae

Description: Frutescent perennial herb; stem succulent, up to 1 m tall.  Leave alternate, spirally aggregated at apex of branches, thickened, ovate-lanceolate, 6–11 X 2.5–6 cm; apex acuminate; base broadly cuneate; margin serrate with a pair of glands at base; lateral nerves 8–10 pairs, arcuate, prominent beneath; petioles to ca 3 cm long.  Flowers solitary or binary, axillary; pedicels 4–7.5 cm long.  Bracts linear, ca 0.5 cm long.  Sepals with 2 lateral sepals, ovate to orbicular, 1.5–2 cm long; posterior sepal or lib saccate, ca 2.5 cm across the mouth; spur ca 5 mm long, bilobed, incurved.  Petals 5, pale yellow or white; standard obovate or elliptic, reddish yellow patches inside, ca 2 X 1.8 cm; apex emarginate; wing petals connate, 3.5 cm long. Stamens 5. Ovary 5-celled.  Capsules turgid in the middle, ca 3 cm long.  Seeds fusiform, granulate-pubescent, ca 3.5 mm long.

 

Distribution: S Vietnam and Thailand, recorded from Chiang Mai (Doi Chiang Dao, Doi Ang Khang), common on limestone ridges, 1,300–2,200 m.

Notes: Last updated on 7 December 2016.

Thai name: Yuea liang pha (เหยื่อเลียงผา).

Photos: Pratheep Rochanadilok, Sukonthip Sirimongkhon (Doi Chiang Dao, Chiang Mai)

References: 
Shimizu, T. 1970. Contribution to the Flora of Southeast Asia. II. Impatiens of Thailand and Malaya. Tonan Ajia Kenkyu (The Southeast Asian Studies) vol. 8 no. 2. 187–217.