Npn-plant

white mangrove (Laguncularia racemosa)

  • When to observe: Year-round
  • What to observe: Flowers, Fruits, and Leaves
  • Where to observe:
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White mangrove is a USA-NPN regional plant species. Regional species are ecologically or economically important but are distributed more locally than calibration species. The USA-NPN integrates these observations to understand better plant responses within the different geographic regions of the nation.
White mangrove is an erect, often multi-stemmed, evergreen shrub or tree, growing 40 to 75 feet tall, and surrounded by upright, finger-like pneumatophores (oxygen-supplying woody structures) emerging from their roots. Its small, greenish to whitish flowers mostly have male and female parts, and are arranged along branched spikes at the ends, or along, the branches. Occasionally, the flowers have only male parts, or female parts with rudimentary male parts, and they occur on separate trees. White mangrove occurs on a variety of soils. It is restricted to coastal locations very near sea level, and is found in tidal swamps and estuaries, in well-drained brackish or saline soils along shores of lagoons and tidal rivers, and on the landward fringe of mangrove communities. It is intolerant of frost and shade.
You should observe...
Here are the phenophases you should observe about this plant.
Leaves Breaking leaf buds

One or more breaking leaf buds are visible on the plant. A leaf bud is considered "breaking" once a green leaf tip is visible at the end of the bud, but before the first leaf from the bud has unfolded to expose the leaf stalk (petiole) or leaf base.
Young leaves

One or more young unfolded leaves are visible on the plant. A leaf is considered "young" and "unfolded" once the leaf stalk (petiole) or leaf base is visible, but before the leaf has reached full size or turned the darker green color of mature leaves on the plant. The leaf may need to be bent backwards to see whether the leaf stalk or leaf base is visible.
Flowers Flowers

One or more fresh flowers or flower heads (inflorescences) are visible on the plant. Flower heads include many small flowers that usually do not open all at once. Do not include wilted or dried flowers that remain on the plant, or heads whose flowers have all wilted or dried.
Open flowers

One or more open fresh flowers are visible on the plant. Flowers are considered "open" when the reproductive parts (male stamens or female pistils) are visible between unfolded or open flower parts. Do not include wilted or dried flowers that remain on the plant.

Fruits Fruits

One or more fresh fruits are visible on the plant.
Ripe fruits

One or more ripe fruits are visible on the plant.

Recent fruit drop

One or more fresh mature fruits or seeds have dropped or been removed from the plant since your last visit. Do not include obviously immature fruits that have dropped before ripening, such as in a heavy rain or wind.
The leaves of white mangrove have two glands at their base, called nectarines, that excrete sugar. Many insects feed on the excreted sugar.

Gardens with this plant

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