A proper and clear recently updated inventory list of protected trees and alien invasive species that are on category 1a and 1b under NEMA in Northern Cape Province with proper description and details.

I don't have access to real-time databases or recently updated documents, including specific inventory lists for protected trees and invasive species in the Northern Cape Province of South Africa. However, I can provide you with a general overview based on the National Environmental Management Act (NEMA) and what is typically included in such lists.

### Protected Trees in South Africa

Protected trees are species that cannot be cut down, damaged, or disturbed without permission from the relevant environmental authorities. The following are commonly recognized protected tree species in South Africa:

1. **Cedar (Widdringtonia spp.)**
   - **Description:** Evergreen coniferous trees known for their aromatic wood and resilience.
   - **Habitat:** Often found in mountainous regions.

2. **Yellowwood (Podocarpus spp.)**
   - **Description:** Indigenous trees with durable timber and a unique growth form.
   - **Habitat:** Prefer moist, shaded areas.

3. **African Baobab (Adansonia digitata)**
   - **Description:** Iconic tree, known for its massive trunk and longevity.
   - **Habitat:** Arid to semi-arid regions.

### Invasive Alien Species (Category 1a and 1b under NEMA)

Invasive species are categorized under NEMA, where Category 1a species are prohibited and must be eradicated, while Category 1b species can be controlled but require management measures. Below are some examples:

#### Category 1a Invasive Species (Eradication)

1. **Giant Reed (Arundo donax)**
   - **Description:** Large perennial grass that can grow up to 6 meters tall, forming dense stands.
   - **Impact:** Displaces native vegetation, alters habitats.

2. **Chromolaena (Chromolaena odorata)**
   - **Description:** Fast-growing perennial shrub with small clusters of white flowers.
   - **Impact:** Forms dense thickets, outcompeting local flora.

#### Category 1b Invasive Species (Controlled)

1. **Black Wattle (Acacia mearnsii)**
   - **Description:** Fast-growing tree with feathery leaves and yellow ball-shaped flowers.
   - **Management:** Requires regular clearing to manage its spread.

2. **Lantana (Lantana camara)**
   - **Description:** Shrub with bright flowers, known for rapid growth and invasiveness.
   - **Management:** Needs frequent cutting and possible chemical treatment.

### Researching the Latest Inventory

To access the most recent and relevant inventory lists specific to the Northern Cape Province, consider the following resources:

- **Department of Environment, Forestry and Fisheries (DEFF), South Africa**: They may provide guidelines and updated lists.
- **Provincial Heritage Resources Authority**: They could have localized lists and regulations pertaining to protected species.
- **Local Environmental Agencies or NGOs**: Often conduct research and publish resources related to local biodiversity and invasive species.

### Conclusion

It is essential to check local regulations and guidelines to get detailed classifications specific to your area. For the most accurate and recent inventories, refer to the aforementioned resources or contact local authorities directly.