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Table 1.
Character | Dracaena kaweesakii | Dracaena yuccifolia |
---|---|---|
Habit | To 12 m tall, branches to several hundred | To 6 m, usually not more than 3 m in coastal forms; branches to ca 80. |
Leaf blade dimensions (mm) | 110–605 × 9–31 | 90–735 × 7–35 |
Leaf blade texture | Thickly chartaceous to thinly coriaceous | Thinly coriaceous |
Leaf base colour | White, when fresh, pale to mid brown when dry | Often yellow-hued or brown in living and dried material |
Leaf margin | Dark to mid green with a ca 1-2 mm white margin when fresh | Pale to mid green, margin concolorous |
Inflorescence axis indumentum | Tuberculate-villous, often dense, sometimes crisped, to 0.15 mm long | Absent to microaculeate, trichomes ca 0.01 mm long |
Floral stalk dimensions (above articulation at pedicel apex) | Floral stalk absent (i.e. flower inserted directly on articulation at pedicel apex) | 0.5–0.8 × 1.1–1.3 mm |
Tepal colour | Cream with a green or yellow hue, paler and more translucent towards margins, greener towards apex and along costa | Bright white |
Filament length (mm) | 2.2–3.8 | 3.3–4.9 |
Filament colour | Intense orange | Bright white |
Filament orientation | Erect | Spreading |
Anther length (mm) | 1.7–2.2 | 1.0–1.4 |
Style length (mm) | 2.5–3.3 | 3.4–5.5 |
Ovary dimensions (mm) | 2.3–3.3 × 1.3–2.0 | 1.8–3.2 × 0.5–1.1 |
Fruit colour at maturity | Brown, becoming orange just before or after falling from infructescence | Dull red on infructescence |
Distribution | Thailand (Saraburi to Chiang Rai) and adjacent eastern Burma. | Thailand (Ratchaburi) to Malaysia (Langkawi) |
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