Brevirostris Begonia

Basic Information

Common Name: Brevirostris Begonia

Scientific Name: Begonia brevirimosa

Native Habitat: New Guinea

History / Discovery / Cultivator

Begonia brevirimosa is a captivating species native to the rainforests of New Guinea, specifically the northern regions. Its discovery remains somewhat obscure in the readily available literature, but it is likely it was documented during botanical expeditions exploring the island’s rich biodiversity. The “brevirimosa” part of its name hints at a characteristic feature – brevi meaning short, and rimosa referring to cracks or fissures, possibly relating to the texture or appearance of its stem or leaves.

This begonia likely remained relatively unknown outside of botanical circles and local communities for a significant period after its initial collection. Begonias as a genus have a long history of cultivation dating back to the 17th century, but the more exotic and less easily propagated species like brevirimosa took longer to reach widespread cultivation.

The cultivation and popularization of Begonia brevirimosa in the horticultural trade are often attributed to dedicated begonia enthusiasts and specialist nurseries. These individuals and businesses focused on sourcing, propagating, and distributing unique and uncommon plant species. Specific cultivators or nurseries responsible for the initial widespread availability are often difficult to pinpoint precisely without access to historical nursery catalogs or specialized botanical journals. However, their efforts were instrumental in making this species accessible to a broader audience of plant collectors and enthusiasts.

Begonia brevirimosa quickly gained popularity amongst plant enthusiasts due to its striking foliage. The large, vibrant leaves boast a deep green color overlaid with a vivid pink or red blush. The intensity of the pink can vary depending on environmental conditions such as light exposure and temperature. The undersides of the leaves are also a deep red, which provides another layer of visual interest. These features, combined with the plant’s relatively compact size, made it an attractive choice for indoor cultivation.

The plant’s origin in the warm, humid rainforests of New Guinea also plays a vital role in understanding its cultivation requirements. Replicating these conditions—high humidity, consistent moisture, and diffused light—is crucial for successfully growing Begonia brevirimosa. Its arrival into cultivation marked another chapter in the ongoing story of bringing exotic and beautiful plants from around the world into our homes and gardens. It continues to be a prized plant amongst Begonia and tropical plant collectors.

Plant Care Summary

Botanical Insights

Adaptations

Begonia brevirimosa, like many begonias from rainforest environments, exhibits adaptations to thrive in low-light conditions. Its large leaves maximize light capture in the shaded understory. The vibrant pink/red coloration might serve as a form of camouflage, deter herbivores, or even aid in attracting pollinators. The plant’s high humidity requirement reflects its adaptation to the consistently moist environment of its native habitat. The rhizomatous growth habit allows it to spread and propagate vegetatively in the rainforest floor.

Propagation Methods

Begonia brevirimosa can be successfully propagated through several methods:

• Stem Cuttings: This is a common method. Take stem cuttings with a few leaves and nodes, rooting them in water or a well-draining rooting medium.
• Leaf Cuttings: Sections of leaves, especially those including a vein, can be placed on a moist rooting medium to produce plantlets.
• Rhizome Division: If the plant has multiple rhizomes, they can be carefully divided and potted separately.

Toxicology

Begonia brevirimosa contains soluble calcium oxalates, which are toxic to both humans and animals, particularly cats and dogs. If ingested, the oxalates can cause intense burning and irritation of the mouth, tongue, and throat. Other symptoms may include excessive drooling, vomiting, and difficulty swallowing. While rarely life-threatening, immediate veterinary or medical attention is recommended to alleviate symptoms and prevent further complications. Keep this plant out of reach of children and pets to avoid accidental ingestion.

Common Problems

Pests:

• Mealybugs
• Spider mites
• Aphids

Diseases:

• Powdery mildew
• Root rot
• Botrytis blight

Other:

• Leaf yellowing: Often caused by overwatering or nutrient deficiencies.
• Browning leaf tips: Typically caused by low humidity or inconsistent watering.
• Leggy growth: Insufficient light can cause weak, stretched growth.

Rarity & Value

Rarity:

Begonia brevirimosa is considered relatively uncommon, contributing to its desirability. This is due to several factors. It requires specific growing conditions (high humidity and warm temperatures), and it’s not as easy to propagate as some other begonias. Furthermore, because it comes from a specific region in New Guinea, accessibility to the plant and its seeds are limited. The demand from collectors who prize its unique coloration also contributes to its rarity in the trade.

Value:

The value of Begonia brevirimosa is influenced by several factors. Larger, more mature plants command higher prices. Vibrant, intense coloration and healthy growth are also highly valued. Plants with established root systems and evidence of robust growth are more desirable. The current trends in the houseplant market, particularly demand for uncommon and visually striking foliage plants, contribute to its market value. Provenance, if known, can also play a role, especially if the plant originates from a reputable source or has been cultivated by a well-known grower.