Aponogeton ulvaceus
Encyclopedia
Aponogeton ulvaceus is a submerged aquatic plant
with a small cone shaped, slightly hairy rhizome
about 1.18 inches (30mm) in diameter. The leaf
blades have a base that tapers gradually, pale green in colour (reddish under intense light), 20+ inches (50+ cm) long and 3 inches (8 cm) broad, with a wavy margin on petiole
s of an equal length, and in appearance slightly translucent. A single bulb
may produce up to forty leaves in good conditions. No floating leaves
are formed.
The yellow flower
s are produced on an 2(-5) erect spikes.
. In the wild, the plant is permanently submerged and grows in both still and moving waters and sunny and partial shady situations.
it makes a very good specimen plant.
Use a fine brush to pollinate the flowers. In a sand/very fine gravel compost
the seeds will germinate in about one to two weeks.
The leaves are attractive to snails who can do a lot of damage to these plants in an aquarium
. Perhaps dependent on origin and genetics some plants will go dormant
in the winter and for several months can be kept at a lower temperature, others seem to keep growing. Many hybrids of this species are sold in the aquarium
trade and the true form is probably quite rare.
Aquatic plant
Aquatic plants are plants that have adapted to living in aquatic environments. They are also referred to as hydrophytes or aquatic macrophytes. These plants require special adaptations for living submerged in water, or at the water's surface. Aquatic plants can only grow in water or in soil that is...
with a small cone shaped, slightly hairy rhizome
Rhizome
In botany and dendrology, a rhizome is a characteristically horizontal stem of a plant that is usually found underground, often sending out roots and shoots from its nodes...
about 1.18 inches (30mm) in diameter. The leaf
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....
blades have a base that tapers gradually, pale green in colour (reddish under intense light), 20+ inches (50+ cm) long and 3 inches (8 cm) broad, with a wavy margin on petiole
Petiole (botany)
In botany, the petiole is the stalk attaching the leaf blade to the stem. The petiole usually has the same internal structure as the stem. Outgrowths appearing on each side of the petiole are called stipules. Leaves lacking a petiole are called sessile, or clasping when they partly surround the...
s of an equal length, and in appearance slightly translucent. A single bulb
Bulb
A bulb is a short stem with fleshy leaves or leaf bases. The leaves often function as food storage organs during dormancy.A bulb's leaf bases, known as scales, generally do not support leaves, but contain food reserves to enable the plant to survive adverse conditions. At the center of the bulb is...
may produce up to forty leaves in good conditions. No floating leaves
Leaves
-History:Vocalist Arnar Gudjonsson was formerly the guitarist with Mower, and he was joined by Hallur Hallsson , Arnar Ólafsson , Bjarni Grímsson , and Andri Ásgrímsson . Late in 2001 they played with Emiliana Torrini and drew early praise from the New York Times...
are formed.
The yellow flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...
s are produced on an 2(-5) erect spikes.
Origin
Distributed throughout central and northern MadagascarMadagascar
The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...
. In the wild, the plant is permanently submerged and grows in both still and moving waters and sunny and partial shady situations.
Cultivation and uses
Aponogeton ulvaceus will tolerate most water conditions, but will thrive in slightly alkaline water conditions and a temperature of around 72°F (22°C). Additional CO2 produces more luxuriant growth. Likes a bright position but will grow in partial shade. In an aquariumAquarium
An aquarium is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants...
it makes a very good specimen plant.
Use a fine brush to pollinate the flowers. In a sand/very fine gravel compost
Compost
Compost is organic matter that has been decomposed and recycled as a fertilizer and soil amendment. Compost is a key ingredient in organic farming. At its most essential, the process of composting requires simply piling up waste outdoors and waiting for the materials to break down from anywhere...
the seeds will germinate in about one to two weeks.
The leaves are attractive to snails who can do a lot of damage to these plants in an aquarium
Aquarium
An aquarium is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants...
. Perhaps dependent on origin and genetics some plants will go dormant
Dormant
Dormant means lacking activity. It can refer to:*Dormancy in an organism's life cycle*Dormant volcano, a volcano that is inactive but may become active in the future...
in the winter and for several months can be kept at a lower temperature, others seem to keep growing. Many hybrids of this species are sold in the aquarium
Aquarium
An aquarium is a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, marine mammals, turtles, and aquatic plants...
trade and the true form is probably quite rare.