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資料編號: | HK-3725 |
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中文名稱: | 孩兒草 |
學名: | Justicia pectinata [找同屬植物] | [完整學名] |
異名: | Rungia pectinata |
植物科名: (APG新系統) | ACANTHACEAE爵床科 [找同科植物] |
標室舊系統 | ACANTHACEAE爵床科[找同科] |
生長習性: | 草本 |
原生/外來: | 香港原生植物 |
圖片花色: | purple_blue |
發現開花: | Sept_Oct_Nov |
特別特徵: | 單葉對生 |
資料更新: | 20240511 10:22:26 pm |
備註: SYN: Rungia pectinata (L.) Nees [COL] GBIF: Justicia pectinata is syn of Rungia pectinata 中華孩兒草-莖具4棱 孩兒草-莖圓柱狀 中華孩兒草-花序4行的苞片形態差不多; 孩兒草-中間開花那兩行的苞片,跟傍邊兩行的苞片唔同樣。 thanks Crawford's info 中華孩兒草:Spikes terminal or axillary, 1-7 cm, 2-sided; bracts 4-ranked, all fertile (4行都係可育花), elliptic, 7-8 × 2-4 mm, margin sparsely ciliate, apex acute 孩兒草:單邊穗狀花序,苞片兩型,分不育苞片 (冇花開) ,跟可育苞片 (有花開). 中間兩行苞片有寬膜又比較圓,會開花. 外邊兩行就比較惰圓,膜又比較窄, 有小尖頭, 不會開花. thanks Crawford's info 中國植物誌: 一年生纖細草本;枝圓柱狀,乾時黃色,無毛。葉薄紙質,下部的葉長卵形,長可達6厘米,通常4厘米左右,頂端鈍,基部漸狹或有時近急尖,兩面被緊貼疏柔毛;側脈每邊5條,常不甚明顯;葉柄長3-4毫米或過之。 穗狀花序密花,頂生和腋生,長1-3厘米;苞片4列,僅2列有花,有花的苞片近圓形或闊卵形,長約4毫米,背面被長柔毛,膜質邊緣寬約0.5毫米,被緣毛,無花的苞片長圓狀披針形,長約6.5毫米,頂端具硬尖頭,一側或有時二側均有狹窄的膜質邊緣和緣毛;小苞片稍小;花萼裂片線形,等大,長約3毫米;花冠淡藍色或白色,長約5毫米,除下唇外無毛,上唇頂端驟然收狹,下唇裂片近三角形。蒴果長約3毫米,無毛。花期早春。 深圳植物誌: 一年生或多年生披散草本。莖基部平臥,有時直立,多分枝,疏被短柔毛,常節上生根,圓柱狀,乾時黃色,疏被柔毛或近無毛。葉柄長1-7mm;葉片薄紙質,下部的葉片通常近卵形,上部的葉片長橢圓狀披針形至狹披針形,長1-6cm,寬0.4-1.4cm,基部楔形,邊緣全緣,先端急尖,兩面疏被短柔毛,側脈每邊約5條,常不明顯。 穗狀花序頂生或腋生,長1-3cm,單生或2-3個簇生;苞片4列,排列緊密, 有花的苞片近圓形或闊卵形,長4-5mm,寬約2mm,外面密被黃色長柔毛,內面僅上部被毛,膜質邊緣寬約0.5mm,被緣毛,先端微凹,有硬的短尖, 無花的苞片長圓狀披針形,長5-6.5mm,寬約0.7mm,外面與內面的上部均密被黃色長柔毛,有狹窄的膜質邊緣,被緣毛,先端具硬的短尖;小苞片橢圓形,長2- 3mm,下面疏被長柔毛,邊緣被緣毛,先端2淺裂;花萼外面密被長柔毛,具5裂片,裂片條形,等大,長約3mm,寬約0.5mm,具膜質邊緣,先端具小短尖;花冠淡藍色或白色,長約5mm,外面疏被短柔毛,花冠筒長約2mm,下唇開展,長約3mm,裂片3,近圓形,上唇直立,卵形,長約2mm,先端2極短小的裂片;雄蕊2,伸出花冠筒之外,花絲無毛,花藥藥室不等高,上方1室基部鈍,下方一室基部具距;房無毛,花柱長約7mm,無毛。 蒴果橢圓體形,長2.5-3mm,無毛,內有種子2或4顆。種子近圓形,直徑約1mm,具小瘤狀突起。花期:9-11月。果期:10月至翌年3月。 FOC: Herbs 20-50 cm tall, annual or perennial. Stem basally prostrate and rooting at nodes then erect, minutely pubescent. Petiole 0-7 mm; leaf blade oblong-elliptic, 1-4 × 0.4-1.4 cm, glabrous except for a few trichomes along veins, secondary veins ca. 4 on each side of midvein, base cuneate and decurrent onto petiole, margin entire, apex acute. Spikes axillary or terminal, 0.5-2 cm, 1-sided, solitary or sometimes 2 or 3 compound; bracts dimorphic; sterile bracts green, elliptic, ca. 4 × 0.7 mm, glabrous, apex acute; fertile bracts circular to obovate, 4-5 × ca. 2 mm, pubescent, margin broadly hyaline, apex obtuse to rounded to emarginate and mucronulate; bracteoles elliptic, 2-3 mm, margin ciliate, apex 2-cleft and subacute. Calyx colorless, pubescent; lobes linear-lanceolate, ca. 3 × 0.5 mm, margin narrowly hyaline, apex mucronulate. Corolla blue or white, ca. 5 mm, outside pubescent; lower lip 3-lobed, lobes triangular; upper lip ovate, 1-2 mm, apex emarginate. Staminal filaments glabrous. Ovary glabrous. Capsule ellipsoid, ca. 2.5 mm, glabrous, 2-4-seeded, apex apiculate. Seeds orbicular in outline, ca. 1 mm in diam., minutely verrucose. Fl. Nov-Jan, fr. Jan-Apr. | |
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10-3725j | |
9-3725i | |
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5-3725e | |
4-3725d | |
3-3725c | |
2-3725b | |
1-3725a | |