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Ludwigia hyssopifolia (G.Don) Exell
| Family Name: | Onagraceae |
| Synonyms: | Ludwigia micrantha |
| Common Name: | Narrow-leaved Malayan Willow-herb, Seedbox, Water Primrose, Inai Pasir, Maman Pasir, Jinaleh, 草龙, 細葉水丁香 |
Name
Classifications and Characteristics
| Plant Division | Angiosperms (Flowering Seed Plants) (Dicotyledon) |
|---|---|
| Plant Growth Form | Shrub |
| Mode of Nutrition | Autotrophic |
| Plant Shape | Shrubby |
| Maximum Height | 0.1 m to 0.7 m |
Description and Ethnobotany
| Growth Form | Usually an herbaceous annual with erect growth form, but occasionally a perennial with a stem that is woody near the base. |
|---|---|
| Foliage | Leaves are elliptic to lanceolate with entire leaf margin (10 cm long, 1-3 cm wide). |
| Flowers | Yellow flower is composed of 4 obovate petals (0.2 - 0.4 cm long) arranged in a cross-like pattern. Yellow petals later turn orange-yellow. |
| Fruit | Dry, dehiscent fruits are known as capsules. Fruits produce two types of seed. Seeds from the bottom of the capsule are darker and longer (0.9 cm long) than those on top (0.5 cm long). |
| Habitat | Typically found on moist soils. |
Landscaping Features
| Landscaping | This species is considered a weed. |
|---|---|
| Usage Hazard - Cons | Invasive / Potentially Invasive |
Plant Care and Propagation
| Light Preference | Full Sun |
|---|---|
| Water Preference | Lots of Water |
| Rootzone Tolerance | Moist Soils |
| Propagation Method | Seed |
Foliar
| Mature Foliage Colour(s) | Green |
|---|---|
| Mature Foliage Texture(s) | Raised / Sunken Veins |
| Foliar Type | Simple / Unifoliate |
| Foliar Arrangement Along Stem | Alternate |
| Foliar Attachment to Stem | Sessile |
| Foliar Shape(s) | Non-Palm Foliage (Oblong) |
| Foliar Venation | Pinnate / Net |
| Foliar Margin | Entire - Wavy / Undulate |
| Foliar Apex - Tip | Acute |
| Foliar Base | Acute |
| Typical Foliar Area | Microphyll ( 2.25cm2 - 20.25 cm2 ) |
Floral (Angiosperm)
| Flower & Plant Sexuality | Bisexual Flowers |
| Flower Colour(s) | Yellow / Golden |
|---|---|
| Flower Grouping | Solitary |
| Flower Location | Axillary |
| Flower Symmetry | Radial |
| Individual Flower Shape | Cruciform / Cross-shaped |
| Flowering Period | Free-Flowering |
| Flowering Habit | Polycarpic |
Fruit, Seed and Spore
| Mature Fruit Colour(s) | Red |
|---|---|
| Mature Fruit Texture(s) | Smooth |
| Fruit Classification | Simple Fruit |
| Fruit Type | |
| Mature Seed Colour(s) | Brown |
| Seed Quantity Per Fruit | Numerous (>20) |
Image Repository
Others
| Master ID | 30902 |
|---|---|
| Species ID | 5279 |
| Flora Disclaimer | The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. |
