Alder

ఆల్డర్ అనేది బెటులేసి (Betulaceae) కుటుంబానికి చెందిన ఒక పుష్పించే మొక్కల ప్రజాతి. ఇందులో సుమారు 30 జాతులకు చెందిన చిన్న పొదలు, వృక్షాలు ఉన్నాయి.

వర్గీకరణ

ఈ జాతి మూడు ఉపజాతులుగా విభజించబడినది :

Subgenus Alnus :

• Alnus acuminata—Andean alder, Andes Mountains, South America
• Alnus cordata—Italian alder, Italy
• Alnus cremastogyne
• Alnus firma—Kyūshū (Japan)
• Alnus glutinosa—black alder, Europe

Speckled alder (Alnus incana subsp. rugosa) —leaves

• Alnus incana—grey alder, Eurasia
  • Alnus hirsuta (A. incana subsp. hirsuta) —Manchurian alder, northeastern Asia, and central Asia in mountains
  • Alnus oblongifolia (A. incana subsp. oblongifolia) —Arizona alder, southwestern North America
  • Alnus rugosa (A. incana subsp. rugosa) —speckled alder, northeastern North America
  • Alnus tenuifolia (A. incana subsp. tenuifolia) —thinleaf or mountain alder, northwestern North America
• Alnus japonica—Japanese alder, Japan
• Alnus jorullensis—Mexican alder, Mexico, Guatemala (one of the few evergreen species)
• Alnus mandshurica— Russian Far East, China, Korea
• Alnus matsumurae—Honshū (Japan)
• Alnus nepalensis—Nepalese alder, eastern Himalaya, southwest China
• Alnus orientalis—Oriental alder, southern Turkey, northwest Syria, Cyprus
• Alnus pendula—Japan, Korea
• Alnus rhombifolia—white alder, interior western North America
• Alnus rubra—red alder, west coastal North America

Leaves of the tag alder

• Alnus serrulata—hazel alder, tag alder or smooth alder, eastern North America
• Alnus sieboldiana—Honshū (Japan)
• Alnus subcordata—Caucasian alder, Caucasus, Iran
• Alnus trabeculosa—China, Japan

Subgenus Clethropsis. :

• Alnus formosana—Formosan alder, Taiwan
• Alnus maritima—seaside alder, east coastal North America, plus disjunct population in Oklahoma
• Alnus nitida—Himalayan alder, western Himalaya

Subgenus Alnobetula. :

Green Alder (Alnus viridis)

• Alnus viridis—green alder, widespread:
  • Alnus viridis subsp. viridis - Eurasia
  • Alnus viridis subsp. maximowiczii (A. maximowiczii) - Japan
  • Alnus viridis subsp. crispa (A. crispa) - northern North America
  • Alnus viridis subsp. sinuata (A. sinuata, Sitka alder or slide alder - western North America, far northeastern Siberia