金葉黃槐

金葉黃槐學名Senna bicapsularis Linn.、Cassia bicapsularis Linn、Cassia limensis Lam.、Cassia sennoides Jacquem.、Cathartocarpus bicapsularis (L.) Ham.、Diallobus bicapsularis (L.) B. D. Jacks.、Adipera bicapsularis (L.) Britton et Rose，英文名Christmas Senna、Winter Cassia，豆科蘇木亞科決明(黃槐、旃那、番瀉決明)屬落葉性灌木植物，又稱雙莢槐、雙莢決明、雙莢決明、雙莢決明葉、雙英槐、金邊槐、多邊黃槐、黃花槐、臘腸子樹、臘腸仔樹，原產於熱帶美洲，株高約一百至一百五十公分，莖直立，枝條開展，匍匐狀，長而軟，樹皮灰白色，常有龜裂栓皮層剝落現象，光滑無毛，嫩枝有時被剛毛，葉互生，一回羽狀複葉，小葉約三至五對，小葉橢圓形、倒卵狀長圓形、倒卵形，端部圓鈍，基部鈍狀或漸狹，偏斜，全緣葉，葉長七至十二公分，小葉長二十五至三十五公釐，寬約十五公釐，最下方一對小葉間具腺體一枚，黑褐色，鈍頭，葉膜質，葉面綠色，葉背粉綠、灰綠色，葉緣有金黃色斑紋，表面平滑，羽狀脈，側脈纖細，於近緣處呈網結，小葉入夜後有閉合現象，具葉枕，托葉早落，葉柄長二十五至四十公釐，小葉葉柄約三至五公釐，兩性花，總狀花序，常集成繖房花序狀，頂生或腋生，生於枝條先端或葉腋，長度約與葉相等，總花梗細長，苞片反捲，花後多殘存，花萼筒狀，合生，端部五裂，覆瓦狀排列，裂片(萼片)長橢圓形，先端鈍，花冠蝶形，花鮮黃、金黃色，徑約二公分，花瓣五枚，離生，覆瓦狀排列，長橢圓形，先端鈍，具柄，雄蕊十枚，離生，七枚能育，三枚退化而無花藥，能育雄蕊中有三枚特大，長於花瓣，四枚較小，短於花瓣，花藥相近，雌蕊心皮一枚，柱頭頭狀，子房上位，子房一室，邊緣胎座，莢果，細圓筒形，長約十至十七公分，徑約十六公釐，直或微曲，如四季豆，縫線狹窄，種子多數，二列，扁圓形，長約七公釐，寬約六公釐，兩兩交疊，交疊處扁平，呈錢包狀，熟後黑褐色。

「黃槐」與「金葉黃槐」的差異判斷：「金葉黃槐」植株較矮小，多分枝，叢狀，葉緣有金黃色條紋，兩者果形不太相似。

常見決明(Senna)屬的品種有：
------------------------------------------------
Senna acclinis
Senna aciphylla
Senna acillaris
Senna aculeata
Senna acutifolia(亞歷山大決明)
Senna agnes(神黃豆)
Senna alata(翅果鐵刀木、翅莢決明、翼柄決明)
Senna alexandrina(旃那)
Senna angulata
Senna aphylla
Senna appendiculata
Senna armata
Senna artemisioides
Senna atomaria
Senna auriculata(耳葉決明、麻榻勒茶)
Senna aversiflora
------------------------------------------------
Senna bakeriana(花旗木)
Senna bauhinioides
Senna bicapsularis(金葉黃槐)
Senna bicapsularis 'California Gold'
Senna bicapsularis 'Worley's Butter Cream'
Senna birostris
------------------------------------------------
Senna calycioides
Senna cana
Senna candolleana
Senna cobanensis
Senna confinis
Senna coronilloides
Senna corymbosa(繖房決明)
Senna costata
Senna covesii
Senna cumingii
------------------------------------------------
Senna didymobotrya(長穗決明、複總望江南)
Senna didymobotrya 'Popcorn Cassia'
Senna durangensis
------------------------------------------------
Senna fistula(阿勃勒、豬腸豆、臘腸樹)
Senna floribunda(大花黃槐)
Senna fruticosa(大葉決明、四葉黃槐)
------------------------------------------------
Senna gardneri
Senna gaudichaudii
Senna glauca(粉葉決明)
Senna glutinosa
Senna grandis(紅花鐵刀木)
------------------------------------------------
Senna hebecarpa
Senna hirsuta(毛決明、毛莢決明)
Senna holosericea
Senna holwayana
------------------------------------------------
Senna italica
------------------------------------------------
Senna javanica(爪哇旃那、節莢決明、粉花決明)
------------------------------------------------
Senna latifolia
Senna leptophylla(狹葉決明)
Senna leschenaultiana(大葉山扁豆、短葉決明)
Senna ligustrina
Senna lindheimeriana
------------------------------------------------
Senna macranthera
Senna marilandica
Senna martiana
Senna mexicana
Senna mimosoides(山扁豆、含羞草決明)
Senna mollissima
Senna multiglandulosa
Senna multijuga(密葉決明、小葉黃槐)
------------------------------------------------
Senna nicaraguensis
Senna nitida
Senna nodosa(節果決明)
Senna nomame(豆茶決明)
Senna notabilis
------------------------------------------------
Senna obtusifolia(草決明)
Senna occidentalis(望江南)
Senna odorata
Senna oxyphylla
------------------------------------------------
Senna pallida
Senna pendula
Senna petersiana
Senna pilifera
Senna pinheiroi
Senna planitiicola
Senna pleurocarpa
Senna podocarpa(羅漢決明)
Senna polyantha
Senna polyphylla(沙漠黃槐)
Senna pumila(柄腺山扁豆)
Senna purpurea
Senna purpusii
------------------------------------------------
Senna quinquangulata
------------------------------------------------
Senna racemosa
Senna reniformis
Senna reticulata
Senna roemeriana
------------------------------------------------
Senna septemtrionalis
Senna siamea(鐵刀木)
Senna silvestris
Senna singueana
Senna sophera(茳芒決明、槐葉決明)
Senna spectabilis(美麗決明)
Senna splendida
Senna stipulacea
Senna sulfurea(黃槐、黃槐決明)
------------------------------------------------
Senna tapajozensis
Senna timoriensis(帝汶決明)
Senna tora(決明、小決明)
------------------------------------------------
Senna undulata
Senna uniflora
------------------------------------------------
Senna velutina
Senna venusta
Senna versicolor
Senna viarum
Senna viminea
------------------------------------------------
Senna wislizeni
------------------------------------------------
Senna × floribunda(大花黃槐)
Senna × nealiae(彩虹阿勃勒)
------------------------------------------------
Senna 'Species'
------------------------------------------------