Isaan landscape

Shower tree in rural Isaan, northeast Thailand

Shower tree blossoms

Early morning sunrise over Isaan rice fields awaiting the next growing season

Mangrove forests line the inland waterways at Krabi, southern Thailand.

More mangrove forests at Krabi

The forest floor at Phu Chong Na Yoi, southeast Isaan, near the borders of Laos and Cambodia

Traveler's tree, with palm fronds, Si Sa Ket

Nuts of the nipa palm (Nypa fruticans)

Conifers in the mist atop Phu Rua mountain, Loei Province, northern Isaan

At the top of Phu Rua

Phu Rua

Fragile sapling in Khao Yai National Park

The forest floor along one of the trails in Khao Yai National Park

Khao Yai National Park

Khao Yai National Park

Teak saplings, Mae Hong Son Province, northern Thailand

Teak saplings, Mae Hong Son Province, northern Thailand

View from the terrace at Wat Phra That Doi Kong Mu, Mae Hong Son, on a cloudy, rainy day

Royal Poinciana (Delonix regia) at Mae Hong Son

View from the terrace at Wat Phra That Doi Kong Mu, Mae Hong Son

Misty countryside, Mae Hong Son

Elegant coconut palms

Conifers (and other trees) at Doi Pui, Chiang Mai Province

View from the hill tribe village at Doi Pui, Chiang Mai Province

Royal Poinciana at Wat Si Chum, Sukhothai, north central Thailand

Royal Poinciana at Wat Si Chum, Sukhothai, north central Thailand

Sacred fig tree at Wat Si Sawai, a Khmer-style temple dating from the 13th century, later converted for Buddhist worship

A closer view of the sacred fig tree at Wat Si Sawai, Sukhothai. Offerings, many in the form of miniature Buddhas, have been placed among the roots.

Wat Si Sawai, Sukhothai, viewed from the west

At Wat Sa Si, Sukhothai

Partial view of the ruins at Wat Chao Chan, a Khmer sanctuary dating from the 13th century, located near Si Satchanalai, north central Thailand