關於
教育
討論
TraitBank
登入
註冊
語言
Deutsch
English
Español
français
italiano
Nederlands
Piemontèis
Português do Brasil
suomi
Türkçe
čeština
Ελληνικά
македонски
Українська
العربية
简体中文
繁體中文
在導航的名稱
方言
學術的
關於
教育
討論
TraitBank
登入
註冊
zh-TW
Deutsch
English
Español
français
italiano
Nederlands
Piemontèis
Português do Brasil
suomi
Türkçe
čeština
Ελληνικά
македонски
Українська
العربية
简体中文
繁體中文
在導航的名稱
方言
學術的
Life
»
…
»
Archaeplastida
»
…
»
木蘭綱
»
…
»
樺木科
»
…
Life
»
Cellular
»
真核生物
»
Archaeplastida
»
Chloroplastida
»
Streptophyta
»
Embryophytes
»
Tracheophyta
»
种子植物
»
木蘭綱
»
Eudicots
»
Superrosids
»
Rosids
»
壳斗目
»
樺木科
»
桤木屬
«
灰桤木
Alnus incana (L.) Moench
收藏
概要
資料
媒體
條目
地圖
名稱
許可
任何許可
CC-BY
CC-BY-NC
CC-BY-NC-SA
CC-BY-SA
No copyright
USDA PLANTS images
任何提供者
CalPhotos
Flickr BHL
iNaturalist
Wikimedia Commons
Barcode of Life Data Systems
Flickr Group
USDA PLANTS images
BioImages, the virtual fieldguide, UK
Inventaire National du Patrimoine Naturel
Biopix Nature Photos
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
cc-0-1.0
可信
"
cc-0-1.0
USDA NRCS Wetland Science Institute (WSI)
USDA PLANTS images
Joe F. Duft. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).
"
cc-0-1.0
ARS Systematic Botany and Mycology Laboratory
USDA PLANTS images
Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United Kingdom, Scotland.
"
cc-0-1.0
Kentucky Native Plant Society
USDA PLANTS images
Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
"
cc-0-1.0
NRCS National Wetland Team
USDA PLANTS images
USDA NRCS. Provided by NRCS National Wetland Team.
"
cc-0-1.0
NRCS National Wetland Team
USDA PLANTS images
USDA NRCS. Provided by NRCS National Wetland Team.
"
cc-0-1.0
USDA NRCS Wetland Science Institute (WSI)
USDA PLANTS images
Kenneth Dritz. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).
"
cc-0-1.0
USDA NRCS Wetland Science Institute (WSI)
USDA PLANTS images
Kenneth Dritz. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).
"
cc-0-1.0
ARS Systematic Botany and Mycology Laboratory
USDA PLANTS images
Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United Kingdom, England, Kew, Royal Botanic Gardens.
"
cc-0-1.0
National Agricultural Library
USDA PLANTS images
W.D. Brush. Provided by National Agricultural Library. United States, Maryland.
"
cc-0-1.0
National Agricultural Library
USDA PLANTS images
W.D. Brush. Provided by National Agricultural Library. United States, Maryland.
"
cc-0-1.0
Kentucky Native Plant Society
USDA PLANTS images
Britton, N.L., and A. Brown. Provided by Kentucky Native Plant Society.
"
cc-0-1.0
USDA NRCS Wetland Science Institute (WSI)
USDA PLANTS images
Robert H. Mohlenbrock. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).