A new species Caulokaempferia buengkanensis Picheans., Phokham & Wongsuwan (Zingiberaceae) is reported from Changwat Bueng Kan in northeast Thailand. A full description, together with ink line drawing with water color and photographic illustration are given. A key to all taxa of Caulokaempferia in Thailand is also provided.

Globba sirirugsae Saensouk & P. Saensouk, sp. nov. from the Phu Phan Moutain Range, Kut Bak District, Sakhon Nakhon Province, northeast Thailand is reported. A detailed description, flowering and fruiting period, distribution, habitat, uses, photographs and illustration are provided.

A new subspecies, Arisaema barnesii C. E. C. Fisch. subsp. sheshanagae Sameer Patil, is described here. It has been unnoticed for a long time. It is characteristically distinct from subsp. barnesii in having a greenish-white spathe with a distinct white coloured 5-armed radiating patch on the mouth and silvery trichomes on the leaf. It is distributed along the shola forests of South India and is assessed as “Endangered” due to habitat loss based on IUCN Criteria.

A hybrid between Salix japonica Thunb. and S. udensis Trautv. & C. A. Mey. (Salicaceae) is described with a new name, S. ×tamagawaensis Yoshiyama & J. Yamag., from Tokyo, Japan.

In the forests of eastern Hokkaido, Japan, we discovered Daphne kamtschatica Maxim. (Thymelaeaceae), which has been regarded as an endemic species of Kamchatka region in Russia. This is a new locality for Japan and the southernmost distribution for the species. This species has white flowers and long rhizomes for vegetative propagation and grows in understories of deciduous forests. It should be conserved because of its rarity.

Germination ability and habitat of Heteropogon contortus (L.) P. Beauv. ex Roem. & Schult. (Poaceae) in Kagawa Pref., Shikoku, Japan are reported. This plant is found only on the open dry ridge of Mt. Kiyama in Marugame City. The thin nutrient-poor soil on the dry rocky hills may allow the survival of this grass. Due to both the habitat restriction, and the difficulty of identification without inflorescence, this species might have been overlooked in the local floras, especially in western Japan. As for seed germination test, comparatively high seed germination ratio was observed and reproduction by seeds for this population was inferred.

Hoya polyneura Hook. f. (Apocynaceae) is reported as a species new to the flora of Nepal. A diagnostic key to the Hoya species found in Nepal is also provided.